The only cart I drove much was the one my brother & I built from scrap steel and a discarded lawn mower. We had no welding available and no adult supervision. Heck we used the wheels from a golf bag pull along for steering. The throttle was a pair of vice grips that you had to use your left hand to pull down so you only had your right hand to steer.
Oh, and the only brakes were the version used by the Flintstones. It is amazing we survived the thing. It was still fun.
