Well I'm not a dad, im more of a kid. Im 15, but I have been playing with tools since I could hold them. When I was 7-8 I made my Mom buy me a B&D Carpentry guide that my dad read to me every night. Then with my grandparents; one is a general contractor type person and the other a great mechanic, I started to build a lot of things and graduated to more and different tools with each use. Now they are both giving me their tools since the general contractor one is in a wheelchair and the mechanic has a bad back. But the mechanic one offered to fill up a toolbox that I brought in to restore with his tools, I declined because I felt it wasn't time yet, and he still does brake jobs with my help and I wanted the tools to stay there. But everyday I think about tools and projects and other stuff like that.
But my brother can't tell a drill from a crowbar from a ratchet. He knows absolutely nothing about tools, or his car and if I try to teach him, he says it doesn't matter he could pay someone to do it. When I helped him move to his apartment I brought some tools to assemble things, screwdrivers, a hammer, and an old 14.4 V Makita with bits in case I get tired of using a screwdriver. It turns out his desk had no holes in it and he told me to put holes in it and put on the legs while he watched T.V. and talked to his roommate. So I worked lining everything up and drilling carefully so I don,t go all the way through. I offered to leave him the tools I brought, but he said if he needs something I would come down, we live three h away with minor traffic, 5 with heavy traffic.
So you might want to ask your 15 year old if he wants to help you change brake pads or something pretty simple and if he enjoys it, you should buy an older craftsman three drawer box on CL, restore it with him, fill it with tools, and give it to him.
And BTW I play video games in the summer a bit too.