When I was younger I guess I was more into nu metal type stuff and when I say "younger" I'm referring to when I was about 10 years old. Around that age I was into bands like Limp Bizkit and Alien Ant Farm because they were pretty big back then and they seemed cool at the time.
Then as I started to get older and paid more attention to music, I started listening to the type of stuff I was brought up listening too but never understood. Punk rock. I'm not talking about bands like Greenday, Sum 41 or Blink 182 either. I was brought up listening to proper British punk. Well, more second wave punk to be specific. Not so much the artsy farsty stuff that kicked things off. I started listening to the bigger, more well known bands and from there I gradually found the type of stuff that I was really into which is considered Oi!. It's pretty much just street level, working class punk.
I've been listening to that kind of stuff probably since I was about 14 and I'll be turning soon. I'd be willing to bet that my musical interest doesn't change much for the remainder of my life.