I just turned 20 on October 12 and I can tell you I've been a Beatles fan since I was a kid (about...7 or 8 maybe?) but officially became obsessed at 13. And yes, I really love being a fan. Yes, I've been bullied because of that at school, but that has never stopped me. Your teacher is totally wrong if she tells you it is not good to like the Beatles at your age: you have an excellent musical taste! Just try to compare that crap of bieber's (yes, with no capitals!) "baby" with "A Day In The Life" or, as we are in a Macca messageboard "No More Lonely Nights". COME ON!