When we first moved to Phoenix in the 60s there was this huge empty lot across the street with an abandoned pit. The neighborhood kids were riding everything in there. Stingrays, 10 speeds, customs, motorcycles, etc.

There was an assortment of downramps with hillocks so you could coast down one ramp and jump the next hillock. The ramps were smoothed from all the kids riding up and down them. This was long before I ever heard of BMX or anything similar. I never learned to jump well. I did manage to land almost perfectly upside down with my schwinn varsity once.

Truth is I think all kids push the limits with whatever they have. Part of growing up.