I've often wondered about that.... I think he would have never left his teenage bed-sit stage. He'd still be sitting in his little bedroom in his Mum's house on Kings Road, writing poems and lyrics and being a bit of a weirdo. Maybe he'd occasionally leave the house to work as a librarian, but only stuffing books in shelves in the wee morning hours when nobody sees him. The occasional concert, lurking in the back of the venue.
...that's how I imagine it, anyway. And mind you, there's more people living that way than we can ever know. The older brother of a former friend of mine for instance lives exactly like that. He hasn't left the house much ever since he finished school which was about 15 years ago. Just sits there by candle light writing. I've never read anything he writes but it could well be world-changing poetry, only that noone ever gets to read it.
Just imagine that would have happened to Moz.... all the riches we would have never seen.