I object to the "moving back home" and "leaving home" terminology. Even at 40-something years old, I still hear people say they're spending their vacation "going back home".

What is it about the place your parents live that makes it "home"? (Especially when that place isn't even the house you grew up in!)

As I see it, "home" is wherever I live. So "moving back home" is a tautology, and "leaving home" on a permanent basis is an oxymoron.