My son started out with training wheels but didn't really have them on long. He had a razor-type scooter that he would ride around, often with his foot up and keeping balance, so I knew it wouldn't be hard for him to ride a bike. So one day he decided he wanted to ride without training wheels, so I took the training wheels off and we went to a big yard where he could ride in the grass, and after a couple of short rides, he was able to go on his own. Now he's outgrowing the second bike he's had, so might have to find him a larger one.