I've found playing D&D to help boost self-confidence, especially among teenagers.
- It helped me stop being a complete hermit and interact with other people.
- One player had a list of neuroses as long as your arm; perked up considerably when his Wizard became the go-to guy to take down hordes of enemies and got praise and acclamation for it.
- Girls / women who "hate math" but add up the dice before the geeks and nerds do.
- Three-year old who figures out the "make believe" part of the game and calls out what Mommy's character is going to do.
- You don't have to be a Paladin (but it helps) to act chivalrously to a female player's character, she reacts like you did it with her IRL
- (The previous also works in reverse, fair warning)
- If your character is bold and courageous, eventually you start acting like him/her, because you have a reputation to live up to.
- Weapon to fight against depression and general teen moodiness
True facts: Every Christmas for the past few years, I've run a one-shot for my dad and brothers. Mom doesn't join in, but she likes to watch or listen in from the next room. Fun times all around, and it's a source of lots of good memories.
 DM = Project Manager (skills that translate to a job)
 Reading (my reading level went from 3rd grade in 5th grade to the college level in 8th grade)
 Socialization (perfect for those who have Asperger’s Syndrome, like me)
 Problem solving