Easy for you to say. For all we know, D probably has some kind of situation (be it family's health, financial, etc.) where he can't move yet. I don't know. All I'm saying is "just move" is easier said than done. EDIT: And since he lives in NYC, it's expensive as sin to live there.
Hell, I had to move back in with the folks back in '08 when the economy collapsed, and with the school loan debt I'm carrying I can't afford to move out any time soon. Sucks. Especially since I lived most of my adult life from 18-30 away from home. Of course, a lot of folks in our age bracket had to move back home for financial reasons.
On the one hand, yeah, I'd love to have a place of my own (though I can't afford it yet.) On the other hand, when the folks retire and move to South Carolina or something, then I'll inherit the house so perhaps I can hang with the folks a little while longer.