30 year old, borderline Y here. OP's points #4, 5, 9, 10 and 12 really nail it for me. I think I've driven, maybe, 6 months out of my life. Bikes, carpools and the bus have so far worked out. From the Oregon Coast to Southwest Idaho... I've never wanted to own a car or even really drive for that matter. I'm glad there might be more people like me out there.

Full disclosure: I wouldn't mind an '83 cutty, however.