Like, I know plenty of parents who have difficult children. Their families alternately give them purpose and stress. Is that an indictment of living with your teenage kids (versus, say, boarding schools)? Or is it merely a feature of humans?
I also know people who don’t live in the same house as their aging parents, but are nonetheless constantly stressed, frustrated, and annoyed by them.
Living together might amplify issues, but I don’t think it is the author’s real problem.