I'm 11 years older than my wife as well. The creepy part is I'm 11 years younger than my Mother-in-law!
Ha! Niiice. Thankfully my parents were a little late having kids, so my guy isn't too close to my parents' age . I'd be ok with it, they'd probably be that much more iffy about the situation, though.
It's not that bad ^^ I've liked a girl who was 36 before, (I'm 20!) nothing happened, but it potentially could, still. So long as they're a good person!
One of the good things about being an adult is that it doesn't matter what your parents think anymore. Part of being an adult is making your own decisions and not relying on one's parents.