Anonymous wrote:WABA website is a good resource. My kids were younger, but had success on a grass incline. We didn’t take the pedals off, but moved the seat down as far as possible so his feet could be on the ground. Starting at the top of the small incline, he picked his feet up off the ground and coasted to the bottom. He walked his way back up and repeated the process several times. It helped him figure out the balance. He hadn’t done a balance bike, but knew how to pedal. After a couple of tries, he moved his feet to the pedals and began pedaling at the end of the incline.
This is a great method. Do something like this. Lower the seat enough that his feet can reasonably touch and have him get the feel of just coating and balancing on the bike with his feet dangling slightly off the ground. When he finds his balance and gets the feet of that, feet move to pedals and he goes. Unless there are some disabilities at play or anxiety, with some verbal encouragement from you he should be able to do this.