Not OP, but my dad was in a similar situation to yourself - when I was 12 he bought me an Arduino kit for Christmas and we spent the holidays building projects together. When I was 13-14 he started taking my sister and I to CoderDojos. I'm not saying this will work for every kid and I was nowhere near as advanced as this guy at his age but it has given me a what seems to be a great career path post-university and a good background in open-source software.