Our friends ended up buying their 6 year old an atv to keep at their parents house for something to do when he goes up there and spends the week. Even though it’s a kids size one, I still don’t know how well I would do letting Kevin get on one and go off by himself. It wouldn’t be bad if we had an adult size one that I could go out riding with him in case something happened, but to let him just go I don’t know as if I could do that quite yet. (Unless he stayed where I could see him) How old would your child have to be before you would let him take off by him/herself on their own ATV or Motorcycle?