Anyone who has a son of this age group has a fear of what will come from the feelings of being invincible. Let's face it, when you are young and dumb, nothing is beyond your realm, and if you survive the first attempt, what the heck why not do it again, only bigger and better. My son's good friend just got one of the fast bikes, "crotch rocket" and I asked my son if it came with a complimentary body bag. I also forbid him to be on it, (for what that's worth) and cringe at the mere thought that he will. When he asked I he could get a motorcycle, I said only when he is not living at home, out of any college that I am contributing any money too, and independently wealthy. I am hoping this will get him at closer to the age where he has at least the good sense God gave a goat. Until that time, I usually send him off with "be good behave, and be careful". I have said this hundreds of times, and hope that it sticks in his mind when it counts.