Morpoggel said:
And if they misbehave, I'm gonna force them to play F

OS.
That's just cruel and unusual, dude.
It's been about a year or two since I took my first steps into the Wasteland (I'm 14 now). I think it was 2004 when I got the game. Just got likely when visting my favorite used book/electronics/games store.
Sure, Fallout has lots of gore and swearing, but there are many filtering options (I never used 'em). The main thing, I think, that will keep younger people from playing, is the fact that FO has a huge and deep storyline. I'm about to beat Fallout, and I still don't know a lot of what happened/is happening.
Then there's the issue of children playing violent video games, which I won't go into. But I will say this: my parents let me play numerous M-rated games (Fallout, RE4, Halo, Half-Life (1 and 2), F.E.A.R.) because they say, "I'm mature enough." While the recommendation on the box says 17+, you should make the decision if you're the parent. Remember: Starcraft was rated T, and that game had some major cussing/violence (played that game in the Second grade, FYI).