My little toddler is riding a 2-wheeler 2,5 yrs. He never had any training wheels. With training wheels you learn to drive a car, not a two wheeled vehicle. You simply must learn a new? Start withe a balance bike with no pedals. You may also take pedals off for a start. Start with duck walking, bunny hops an gradually the little one will find balance and steering by himself. Then you graduate to a peddled bike.