This is one thing i dislike and thought the prejudice wouldn't lie in this board.. But people who think themself superior because they are "metalheads". Just like true "punkers" they belittle people are are trying to get into the crowd. Honestly, if it weren't for one of my friends, i wouldn't know a quarter of the bands i do. Everyone has to start somewhere, not everyone magically knows every single good band. I understand your frustrations of having some little shits thinking themselves cool by listening to music they cannot even comprehend the beauty of but it is part of every single music genre!
In Canada, no one really knows metal. When i let friends listen to it.. they'll listen for like 30 seconds and call me crazy but i don't let it bother me. I like what I like. There are like 8 or 9 people in my grade who likes metal.. and maybe 20 in the school who do. I wouldn't worry bout metal becoming popular because not many people understand what makes it so great but even if it did, are you telling me you would automatically stop listening to your favorite band? (if they didn't sell out).. if you would then it shows you aren't loyal and only go for the image of being underground....
But i disagree with the person who said they would rather a 10 year old listenig to metal rather than tatu... Personally i like tatu (scares me too) but i don't find metal is really acceptable for the innocent mindstate of a child.