I was driving our John Deere "D" by myself using a field cultivator when I was 7 or 8. I would have to sit on the seat and use my foot to push in the clutch (a hand clutch on the JD) and then to disengage the clutch I would have to stand up put both hands on the clutch handle and pull with all my weight to stop the tractor. When I was 10 I was operating the John Deere #55 combine cutting wheat by myself. I'm sure something really bad could have happened, but something bad can happen to my at 72 on one of my Kubota untility tractors.
I would not want to change the experience I had as a "Farm Kid" for anything.