I was a little late for Dragon Ball, but when I got my (step) son when he was 12 he was VERY much into it.
I hung this on the bulletin board in my office, just to be sure I remembered that someone was now watching me, and would likely do the things I do... Helped me remember to 'train him up', and well as reign myself in. That in and of itself, makes me greatly appreciate him, but Watching Dragon Ball Z with my son was pretty awesome too!