I suppose it would depend on your son. I mean there are pcs who would make me nervous to drive at 16. lol
Why not let him try? Does he get a driver's ed course where there is a teacher who takes him out driving? I mean, if he's too bad, they won't let him pass, and you don't have to be the bad guy. 
Now picture yourself with a legally blind kid with Pervasive Developmental Disorder (PDD) who wants to drive. lol
