There isn't much to stop anyone with no experience and a license to get a liter bike and go crazy. PA now will license you at the end of the motorcycle safety course which seems the way most people are going which is great. How about this...when I was 16 here in PA a could drive a motorcycle anywhere with just my permit...didn't need a licensed driver. I'd been riding since I could almost touch the ground so it was great. Had permit a week and took my test for the car and bike at the same time and I was all set. Now that my youngest has her permit she has to drive on it for 6 mos. before she can test. Great idea I think now...wouldn't have worked for me 30 some years ago. Training and experience is everything!