Originally posted by: michaels
For a pedal bike? No, but he has a 50 cc four wheeler that i make him wear a helmet with.
No helmet? Bad idea, in my opinion. My grandmother goes on bike trips rather frequently, and her helmet's probably saved her life a few times. Sometimes you just take a spill on some stones, or bad road or something. I'd rather have a backup for my skull, than have to rely on it alone.
My sister was lucky. She was riding without a helmet once, and somehow didn't know that you do NOT apply great pressure to the front brakes when going down a hill. She flipped the bike, and hurt her hands, arms, and banged her head. She was alright, but given the steep hill she was on, with rocks about the size of a baby's head along the side of the road, it could have been a lot worse.
I don't know how old I was before I would ride a bike without training wheels. The idea that a thing with only 2 contact points could be stable just seemed absoltely crazy to me. Round, free-rotating contact points, no less. I was familiar with gyroscopes at the time, but never put the two ideas together.