Hi Zephyr,
Sometimes parents are just scared of their kids growing up!
My kids (both under 10) listen to all sorts of music ...punk, rap, hip-hop, mainstream. This hasn't made them any worse than they were to start with

You could say that anything was corrupting...TV, video games, music etc. We all enjoy different things & sometimes parents freak out when their kids are loving something that they just don't understand.

Don't panic. Parents are just really weird people!!