I think there's still a nationwide housing shortage, not just in urban centers. In SF and NYC, this means you get people making six figures with 3 roommates. Moving out doesn't change that there's a shortage, but it spreads it around. Some people will move in with their parents, and some will hopefully keep their coastal salary, move somewhere cheaper, and push lower income people into roommate situations. I'm expecting to hear some low-level gripes across the country about rising housing costs. Nothing like coastal levels, but levels people there might not be used to.