Sure, I would, after making sure he knew how to drive it and allowed me to build trust in him. Would I start him out with a 4-500hp car in a manual, probably not day one. I’d find a manual beater for him to learn on, and then, take him out on some quiet roads with an M car. That’s how I taught my wife to drive a manual, a few years ago. They have to learn to be responsible, at some point, so, might as well teach them to be. I’ve got a few years till the kid starts driving…so no immediate worries.