Dunno where you got your “data” but it is false. Millennials are moving to the suburbs at the same rate as the previous generation. The suburbs have been the fastest growing regions since the recovery from the 2009 recession.
I won’t argue your point, because it is a bit different from what I was saying. Young people (not data just opinion) seem satisfied with smaller living spaces. They have no interest in dusting Grandma’s antique bird collection.