Yep....Some people never get over the angry teenager tirade stage....All angst, zero culture...
Some metal caters to that, it is true. BUT, like it's Blues roots, its themes cover more adult sides of negative emotions as well. The world is not all sunshine and puppies, and heavy metal is there to reflect on this.
'To each their own' is all the wisdom I can muster on this topic though. Actually its what I muster on most topics these days. Funny, that.