Omg I just got this joke! Maybe I'm just slow, but I saw no one talking about it yet:
When Dev said, "Ask for lemonade, I never get to have a lemonade." I was confused because why isn't this rich kid who literally can have everything in the world not allowed to have this one simple thing... until I realized that Dale worked at a lemonade stand.
Bro is so traumatized that he won't let his kid drink lemonade... oh my god.