^^^This. Unfortunately, being a teenager, the more you try to talk him out of it, the more he's going to gravitate to it. Hopefully he doesn't have the $ to buy, insure and maintain such a bike. I rode a lot of dirt bikes as a kid and my first street bike was a CBR600F4 and it scared the hell out of me. I was a pretty mature 20 at the time...if I had gotten a 'busa back then, I wouldn't be here to type this.