My boy had a balance bike when he was two, soon mastered it. Bought him a proper bike from halfords and he was on the stableisers for two weeks, soon as I took them off having the balance was a matter of days before he was confident. He now rides to school every day since he started age 4. Problem is he's out growing his bike. Need an all weather age 4 - 6 bike that's actually good for commuting, luckily we have cycle paths right the way to his school.