Parents mad at University Sims for cooking and showering at home.This is inappropriate, please stop!

It’s because once a sim goes to live on campus while attending university the game labels them as a household separate from their parents household, and the game is programmed for that reaction when an “outside household” is making themselves too at home in someone else’s house. What I don’t understand is making food and taking a nap is a no no, but busting into someone’s bedroom to play blick block is cool? It would be nice if it were relationship level based. So that if you have high friendship/romance levels with a sim they don’t freak out if you cook for them or take a nap.