I like to consider myself a competent adult, making good decisions and all
But dirt bikes just get dumped unless you always want the tires to be fully planted and never skidding.
Oh, and if I can't resist, then I don't expect my son to resist the temptation either! In fact, I encourage him to break it loose and learn to slide into turns, lift the front tire, jump on the next lip!
I was thinking sprockets early on in reading this thread. I agree. Tell him that learning to wheelie off road, and climb rocky pitches will improve his bike handling skills and help him survive when he is faced with a car in front of him sideways when he is negotiating the pavement. THAT is where these skills really pay off
But forward this link to him