Young people's music

Is there anything wrong if you prefer to listen to music made by people who are younger than you?

I'm 25 and I like Panic at the Disco, Fallout Boy, Paramore

I remember about a week ago I saw a 45 year old guy wearing a My Chemical Romance T-Shirt.
I laughed out loud.

It's ok... as long as it's not a major difference like the 45 year old guy.