How come people who play real guitar say they can't play guitar hero?

May be...

I have a 72' model Squier Telecaster and a Dean v and I can play Guitar Hero on Expert with no problem. Yet my friends and some other people can't. Why is that?

I dont know, I do hear that alot though.

I love playing Guitar Hero!

well since you play guitar you've probably noticed that it's nothing similar to guitar hero.. so that's why people can't do it.