@ 0:36Hey, wait a second, aren't your kids like old and stuff?
...then he wiped out and never went back

If your kids don't have those little scooters, I would suggest that. I think it really helps with the concept of balance.
I taught both of my kids to ride a bike tonight. The looks on their faces was fucking priceless.

Diamondback
One of my most vivid memories of my father was him teaching me to ride a bike one day. I must have been 5 or so.
I rode the shit out of bikes for years after that.
Man, that rules. I wanted a Diamondback or Haro so badly back in the day.
I literally have no other skills other than placing central lines now.