I'm not saying you have to like it, I'm just saying your reason was stupid as hell.

You can honestly just say "I don't like it because I prefer other music" or "I don't like it because it is not my style of music" but to dislike something because it is "old" is quite stupid.

I was raised on Metallica and Ozzy, and I don't like them much now. Not because they are old, but because I've moved on.