American culture is changing. It used to be that family bonds were the tightest, and we had generational housing, but that started going away during the great depression when a lot of family farms shut down and people lost the house they'd been in for generations. We also don't like to talk about the amount of generational trauma that came from both the world wars, and that was another nail in the coffin of family life. The most recent blow has been the economy, where both parents need to work and don't have the time to build the bonds with their children that are needed for a tight-knit family unit.