I'm in my twenties...
One of the off-shoots to this thread is "Some young girls look older than they really are". What I mean is.... I workout at an LA Fitness. When a girl comes into the gym to workout, she's in workout clothes (sometimes revealing, like a sports bra + middriff showing and tight pants, or sometimes not revealing, like a baggy t-shirt and shorts).....well, the point is, it's hard to figure out how old a girl is sometimes.
So there's been an instance where there was a girl at my gym that I thought was totally hot. However, one day I was on the elliptical machine and two girls next to me on separate elliptical machines started talking about the hot girl....and I overhead that she's only 16. Needless to say I never looked at her the same way again.
Also, guys at the gym definitely look at her, and some of the guys are older than me. And there's other high school girls that guys stare at when they pass them in the gym. I notice it all the time.
BUT... the point is sometimes it's hard to tell how old a girl is. A 16 yr old girl can sometimes look 18-19 years old.
So is it wrong to find a young girl attractive? I dont think so. Every government has deemed an age (US is 18 but I think England is 16) a legal age, due to concerns with youth being manipulated by old horny dudes.
But keep in mind...I'm coming from a liberal perspective, and you have to realize that back in caveman days, or just a savage society in general, once a girl is of "baby-bearing" age, cavemen would probably act on it.
I think there's a natural instinct present, but because we lived in a civilized society we've seen the consequences of youth being corrupted so now we've set boundaries. But I still think there's a pre-civilized, caveman, natural instinct, whatever you want to call it, that attracts a man to fully developed, "adult looking" woman...and like that girl at my gym, I thought she was 19, she totally looked like a college girl.
But I was wrong. She was not. Should I feel guilty? No, I don't. But I also stopped looking at her cause her young age makes me see her differently.
She's no longer a "hot chick" to me....she's just a little kid.