Buy him some safety glasses and some gloves and let him stay in the garage and learn. My youngest boy (14) out of 6 (3 girls -3 boys) spent most of his life in my garage & the pits of dozens of midwest dirt tracks. he's raced 1/4 midgets since he was 7 ( cept I can't fold him in half and put him in one anymore) ( on to 600 mini sprints later this year) He can run any tool in my garage and has free run of it with the exception of the welder & torches unless I'm there.