I turned my kids into parts and tool handers they love it and think they are just the biggest helpers in the world. My 5 yearold asks nearly everyday "hey daddy are we gonna mechanic on you motorcycle?"
He also got a mini tool kit for his b-day and took apart one of his mini electric motorcycles . he ruined it so it will never work again but thats ok hes learning .

I have no faith in human perfectability. I think that human exertion will have no appreciable effect upon humanity. Man is now only more active - not more happy - nor more wise, than he was 6000 years ago. Edgar Allan Poe