So coincidental you should post this now....
....When I'm building cars, my 7yo always puts in an appearence, I think it's because she can relate to the subject easier - and she's very, very good at mixing paints. I have a '70 Chevelle bodyshell in a stunning turquoise metallic that she mixed for me.
My 5yo boy has not really shown much interest.... until earlier this week !! I was prepping my latest project when he wandered-up and asked if he could help. I'd just separated some resin ejector seats from the molding block, so I drew a rough triangle shape, gave him an old X-Acto razor saw and asked him to cut the block into the triangle shape.
He got distracted before he finished by his wee buddy coming around to play, but he made a great start - from nowhere he just 'got it' right away.
Who can tell. It may be a passing thing or the start of something more.
Ian