Again, I think this is more a problem with upper middle class suburbs. I grew up in the DC suburbs, where nobody knew each other because nobody was from there. They had moved there for careers; often it was a government position and they’d move back to Michigan or wherever after the political appointee they worked for left office. That was distinctly different from my wife’s experience. (Most of her extended family lives within a couple of hours of the homestead her family had when they came over in the wagon trains, and her parents went to the same high school.)