My 5yo just rode his bike without training wheels
Been working with him for like 3 months. Today I let go and he just kept going. Made it like 20 feet before he ate it but dude the look on his face when he realized he did it. Took him to get ice cream after. Best day ever honestly.
20 feet is just the beginning. Wait til he realizes he can actually control it, then he'll be flying around the neighborhood. Just remember the helmet situation.