"especially while some of them descend into perpetual adolescence, moving back in with their parents at 23 or 24––many of their parents, at that age, had already served in war, gotten married, and had multiple children."

How old do you thing the parents of millennials are?  Millenials were born in the 80s and 90s, so their parents were mostly born in the 60s and 70s.  Newsflash, the draft was long over when the parents of millennials had kids; most DID NOT SERVE in a war.  They didn't even serve in the military at all.

I'm all for bashing millennials, be at least be accurate when comparing them to their parents.