No, I wouldn't say that is was normal for a twelve year old to be judged more sexually experienced than a young adult man. Either something is wrong with the judge's perception, or that child has suffered abuse. I would assume that there may be problems at home, and that the family needs support.
But it does not follow that sex in a park with SIX ADULT MEN is the logical conclusion of all of the above. Statement B does not follow Statement A. The girls could come from the best home, or the worst home SS have ever seen - it makes no difference, none at all, to what happened in that park. Those men are at fault, and only those men.
Twelve year olds can do whatever they like, to be honest - tha's what I was trying to explain in my last post. I don't expect an adult to take them up on it. Children are sexual, and this increases as they move towards their teenage years. Even in cases where there has been no abuse: children flirt, they masturbate, they explore their emotions and sexual feelings - I don't expect an adult to take that as a request.
We need to get much more black and white about this. You had sex with a girl you thought was older, but she's not? Tough shit. You should have checked. But she was offering sex? Tough shit. It's not your inalienable right to have sex with someone three minutes after you've met them. She wanted it? Tough shit. She's not old enough to want it, in law. Tough shit - you're a rapist and what you have done is rape.
You can be a rapist through violence, intimidation, and fear - we need to hammer it home that you can also be a rapist through plain old selfishness and wilful ignorance. Because our culture will excuse that.