I guess they never learnt. If you never learn then you won't know how to ride. Tom Scott made a video, as an adult learning to ride a bike https://www.youtube.

I guess they never learnt. If you never learn then you won't know how to ride. Tom Scott made a video, as an adult learning to ride a bike https://www.youtube.com/watch?v=P7GKK3liv8M https://www.youtube.com/watch?v=P7GKK3liv8M