#but going on how these things often end up IRL plus things Wendy says

[sage-nebula]

Thinking about how important it is that Wendy is a part of the Pines family. (Because she is, as much as Soos is. It's why she's in the family photos, such as the one representing Ford's happiness at the end of The Book of Bill.)

We don't know too much about Wendy's home / family life. Unfortunately, we don't a single Wendy-focused episode, and we don't get to learn too much about her outside of how she interacts with the main characters. But here is what we do know:

Wendy is the oldest of four siblings, with three little brothers. Wendy herself is 15. We are never given ages for her brothers, but given the photo that she shows Dipper of her younger self in "Double Dipper", I'm guesstimating that the youngest Corduroy brother (Gus) is about 6 in the present day. This is because young!Wendy was wearing braces and also noted to be "freakishly tall" for her age, and Gus was wearing a diaper in the photo (but standing on his own). Braces can take two to three years to be removed, and Wendy doesn't have them in the present day, meaning she was probably around 11 or 12 in the photo. Meanwhile, Gus was in a diaper but able to stand, meaning he was probably a toddler, likely around 2. So in the present day, Wendy is 15, Gus is around 6 (depending on if Wendy was 11 or 12 in the photo), and Marcus and Kevin (the middle brothers) are between 14 and 7.

Wendy's mother died when she was young. Given the age of Gus in the photo, we can estimate that Wendy's mother died when Wendy was, at youngest, 11 or 12 -- so, three or four years pre-canon. (Because any earlier than that and Gus couldn't have been born.)

Wendy's father is Manly Dan, who shouts just about every line of dialogue he has and routinely breaks things, including in his own house, albeit sometimes by accident. He also spends most of his time in a biker bar, though we do know that he does love his children. (e.g. is seen with the boys on both family fishing day and Summerween, is seen taking Wendy out for breakfast in "Dipper vs. Manliness").

Dan is the reason why Wendy has a summer job. As she says in "Gideon Rises", "If I can't work at the Shack, my dad's gonna force me to work at my cousin's logging camp up north." This implies that Wendy has to work somewhere, per a rule of Dan's.

In "Into the Bunker", Wendy has this to say when she comments on how she's excited to be going on an adventure with Dipper and Mabel: "It beats cleaning up after my dad at home." She says this with a frown, in a grousing tone. We're then treated to a clip of Dan breaking apart the cabin as mentioned above.

In "Society of the Blind Eye", before she's about to have her memories erased, Wendy confesses thus: "I'm stressed like 24/7. Have you MET my family?"

Wendy dreams about her mother every night. The glimpse of her dream that we're shown depicts her receiving a comforting hug from her mother.

The conclusions that I draw from the above are thus: prior to her mother's death, Wendy had what amounts to a normal family life in Gravity Falls. The Corduroys were a two parent household, her mother was there to help balance Dan out and raise the kids (Wendy included), and Wendy could, well . . . be a kid. It's possible, even, that some of Dan's more worrying traits (such as spending the majority of his time at a bar) didn't exist when Wendy's mom is alive. It's pure speculation on my part, but it's possible that Dan feels compelled to go to a bar to be aggressive (and drink, even if we don't see it because it's a kid's show) because that's how he processes his grief over his wife's death, away from his children's eyes and ears. He's trying to be a responsible father and not hurt his kids, while at the same time still not handling things in the most healthy way.

But back to Wendy. Once Wendy's mother died, the dynamic in the Corduroy household shifted. Dan was hit by the tidal wave of grief that comes with losing a spouse, as well as the sudden onslaught of being a single father to four children, one of whom was very possibly still in diapers. And if my speculation is correct and that he took to going to the bar to deal with his grief, then who is left to change Gus' diapers and get him potty trained? To operate the stove or oven or microwave to make sure that the boys (who would all be under age 10 at this point) got fed, and to make sure she got fed herself? To, in her own words, "clean up [her] dad's messes" when he was at home to make them by breaking apart the house with his own head?

Wendy.

Wendy was a child herself when her mother died, but she was the oldest child, potentially freshly into middle school while the boys were still in elementary, and the oldest daughter to boot. The girl, expected to know how to do "girl things" like cook and clean. I'm not saying that Dan told her to do these things, but we know from Wendy's personality that she is protective of those who need it (e.g. Dipper and Mabel) and, more importantly, that's her home and her family, and she does love them (she makes this clear in the Weirdmageddon episodes numerous times). She wouldn't let her little brothers starve, wouldn't let her youngest sit in a filthy diaper, would try to pick up the house if her dad and brothers wouldn't. Wendy would step up to do it out of necessity, even if she hated it and felt stressed out about it, especially while also feeling the crushing grief that comes with having lost her mother.

So Wendy, having lost her mother at a young age, probably had to step up into a pseudo-parental role in her own house, trying her best to fill the void that was left by her mother's passing even though she was only a child herself. And this is why she's "stressed, like, 24/7." Because not only are her father and brothers loud and chaotic (especially with Dan raising the boys into miniature versions of him), but because it's her responsibility (spoken or no) to keep the house in as much order as she can. It's little wonder that, outside of the movie that she and Dipper are watching in the beginning of "Into the Bunker", Wendy seems to spend as little time as possible in her own home.

So, how does this fit into it being important for Wendy to be part of the Pines family? Or, worded in a better way, why it's so important that she has the Pines as a second family, and the Mystery Shack as a second home?

As I said above, once Wendy's mother died, her ability to be a child in her own home effectively ended. Again, to make it clear, Wendy doesn't hate her family. In fact, it's the opposite; the Weirdmageddon episodes make it clear that she still loves her father and her brothers very much. But "Society of the Blind Eye" also makes it clear that they stress her out. She has a lot of complicated feelings, something that's understandable given her complicated situation.

But because she has to help keep the house together when she's at home, that means she can only really be a kid (or teenager, as the case may be) when she's outside of it. She has a lot of fun doing this with her friends, but sometimes a teen does need a home to relax in. And for Wendy, that home is the Mystery Shack -- and yes, that includes when she's on the clock.

Now, I know what you may be thinking: it's stated that Stan is a terrible boss, that he barks orders, that he yells -- how is that any different from her father? Well, I'll tell you how: the only time we actually see this is in "Boss Mabel", in which Stan being a boss who yells and barks orders at his employees is a plot point meant to create the conflict for the episode. Otherwise, we never really see Stan being an awful boss, and in particular we never see him being hard on Wendy. In fact, I would argue we see the opposite.

Here are things we know about Wendy's behavior at work, and Stan's response to her behavior at work:

Wendy constantly reads magazines while working the cash register, often right in front of Stan. Stan never tells her to put the magazine away.

Wendy often puts her feet up on the counter. Stan never tells her to take her feet off the counter.

Wendy goes up to the roof "all the time, every day" to the point where she has a chair and cooler up there. ("The Inconveniencing"). We don't know if Stan knows about this or not, but it's hard to believe he wouldn't if Wendy goes up there as much as she says she does.

When Stan told her to hang signs up out in the woods, she said, "I would, but I can't . . . reach . . ." while making no effort to get up to get the sign, and not removing her eyes from the magazine or her feet from the counter. Stan simply said, "I'd fire [. . .] you if I could." i.e. she got away with it 100%. ("Tourist Trapped")

When Stan double checks with Wendy and Soos that they'll wash the bathrooms while he's gone, Wendy says, "absolutely not" with a salute. Stan laughs and then says to stay out of trouble, not caring at all. ("The Inconveniencing")

Wendy was supposed to work the ticket stand all night at the party. She quit about ten minutes in and blatantly joined the party. Stan had to have seen her. He did nothing. ("Double Dipper")

Wendy claims in "Boss Mabel" that Stan doesn't let her have friends at work. In contrast, we see Robbie visit her at work all the time throughout their relationship (e.g. "Fight Fighters", "Boyz Crazy"), and Stan even comments on "is that the guy that's always making googly eyes at Wendy?" but otherwise has no problem with it. So again, it was a conflict invented for "Boss Mabel" that otherwise doesn't exist.

And that is just off the top of my head. The point is, Wendy is perhaps treated the easiest of the staff at the Mystery Shack. She's blatantly lazy and snarky and the most Stan ever does is grouse that he would "fire [her] if he could."

And this is a good thing.

The Mystery Shack, even if when she's on the clock, is clearly a place where Wendy can relax. It's somewhere she feels comfortable, rather than stressed. Yes, she's working -- but she's putting in the barest minimum effort because the stakes are the lowest they could possibly be. Because even though Stan grouses and complains about how little she cares, he won't fire her. He says he can't, but let's be honest, he could. One could argue that he'd be out a cashier, but he already is when the school year starts and Wendy has to go back to school. The Shack doesn't close down then, so it wouldn't close now if he fired Wendy.

But he won't fire her, because he knows that if he did, she'd be sent up north to her cousin's logging camp, a job she would hate and that would add on to the stress she already has from her home life. Stan has been in Gravity Falls for 30 years; he's been there since before Wendy was born. He knew her mother. He remembers when her mother died a few years ago. He probably saw how Dan's personality changed, how Wendy's personality changed from a more carefree little girl to a little girl who had to act more carefree than she actually was because she won't ever dare let anyone know she's anything but tough as nails, kinda like the guy he sees when he looks in the mirror. So he'll grouse at her about her laziness, and she'll complain about how much she hates having to work, but he'll also never hire another cashier even during the school year when the Shack maybe could use the extra help, and she knows that he both has an orthopedic back pillow and where it's kept, and that's as much as either of them will say about it. (Source for the orthopedic back pillow: "Soos and the Real Girl").

Wendy spends time at the Shack that would otherwise be spent at her home. When she decides to leave Tambry's party early, she goes to hang out at the Shack and watch movies with Stan, before the twins or Soos arrive ("Summerween"). She's likewise hanging out with the Pines and Soos watching television despite work clearly being over in the beginning of "Dreamscaperers". Wendy can relax at the Shack, can be in a home environment where she has no responsibilities, where she can simply be a teenager without also having to be a pseudo-parent. She can be a big sister figure to Dipper and Mabel without the added responsibilities of having to make sure they're fed and brought up right. She can be snarky with Stan, and he'll be snarky back, and there are no risks or consequences at all.

It's important that Wendy is a member of the Pines family, because here there are no complications for her. She loves her original family, but things got difficult when her mother died, and they won't ever stop being difficult. But things aren't difficult with the Pines. In a way, being with the Pines is as comfortable as the hugs she gets from her mother in her dreams every night. Being with the Pines feels right. It feels safe.

It's good that Wendy has them. It's important that Wendy has them. And fortunately, she always will.