I'm 22, and I'd say that probably about half of the people I meet these days have at least some passing familiarity with some of the more well-known adventure games (though far fewer of them are actually avid "fans of the genre"). However, I skew from the average quite a bit because I'm a programmer, and the types of people I know tend to be more familiar with gaming in general than most people are.
Regarding personality,
we've actually had this discussion before.
