I can't pm you because your name isn't clickable, so I'll post my rec list here:
*Lord of the Rings: Several male role models in different flavours, classic heroes as well as small-time heroes, he can take his pick. Also, very timely with the new films in the cinema.
*Captain America/Avengers Assemble: Classic Hero, and a theme of misfits doing the right thing with no immediate personal benefit to them
*Transformers, the original cartoon series: It's been said by multiple people that Optimus Prime was a father figure to them while growing up in a single parent household
*How to Train Your Dragon film and cartoon series: Strong themes of taking responsibility for your actions, misfit hero, strong emphasis on brain over brawn
*Summer Wars: It's an anime film about family and the contrast with the online world, it's very sweet and there's more emphasis on brain power saving the day and again, doing what's best because you can
*Harry Potter's an obvious one, but it's popular for a reason
To add to these recs, I'd suggest the following non-music related hobbies.
*Martial arts (for the discipline)
*Warhammer (for the artistry and team-building)
And perhaps adopting a pet might help him develop a bond and a sense of responsibility?