Imitating Reality?

Brandon and Caitlin are in the living room playing house. Their houses consist of their quilts draped across our dining room chairs. Brandon is complaining to me that Caitlin needs to go shopping. He doesn't want to do it because he wants to stay home and watch TV. Where is he getting this from?????? I often don't want to go shopping, but it's mostly because I don't want to take 2 kids with me. Not because I want to stay home and watch TV!