The adult is not expected to just know. They are expected to find out for certain, before engaging in potentially criminal acts. Ignorance is not a defence. If you can't be certain then don't have sex. It's not rocket science. The onus is on each adult to check they're not about to do something criminal!
Children, even very damaged ones who are acting out dangerous and unhealthy behaviour, need to be protected by adults.
I am astonished and sickened by the sheer number of posters here willing to place all or some of the blame/responsibility on children.
^^ This with fucking bells on.
So many excuse made for the disgusting behaviour of men. To say he thought she was older is bollocks, as a previous poster said, he saw what he wanted to see and assumed he would do the deed and move on. And his text messages to his friend just highlight what an animal he was. Some of the victim blaming on here of A 12 YEAR OLD GIRL is sickening.
Aeonium if this case makes men like this stop treating girls and women like pieces of meat in the future then I think it's good he's been made an example of. Maybe one of our DDs who may have the misfortune to cross paths with him in the next few years will be that bit safer for a bit longer.