My son (6 yo) had beginners basketball lessons this winter. I had my hand over my face for most of them, but he did get a pretty good dribble down after the third and last class.

I think starting kids early is fine as long as there's no performance pressure. If they show any talent early, though, you gotta milk that and start pimping them out to scouts so you can live off them when they hit the pros.

\:D