I only have one friend who fits that criteria, but even he only really listens to the more mainstream metal bands. Apart from that, I have a few other friends who probably would come along to shows and stuff, but they aren't really into metal, more rock/alternative stuff, with a bit of (again, very mainstream) metal thrown in.
Quite a few of my older friends used to listen to metal when we were younger, but they've totally moved away from it now. Apart from that, the majority just have no interest in metal whatsoever.