Granddaughter (10) has a stunt scooter. Part of the fun seems to be 'customising' it - mainly wheel changes.
Gramps house is the ideal place to do so, having easy access to tools.
The granddaughter is often heard saying "can I borrow a 6mm allen key & a 13mm socket"?
I view this as a good thing, learning about such stuff at an early age.
I was very impressed though, with how she remembers which way to turn things....
"Righty tighty, lefty loosey".
:-)