Confronting and changing perpetrator behavior is a new idea. After the fact is too late to ascertain the feelings, boundaries or level of comfort of potential partner. Whether one assaults out of ignorance rather than out of malice, is probably no consolation to the victim. Sex and sexual assault are similar, in fact identical, for many students. Boys are left alone at the mercy of other boys and men.
Most boys grow up emotionally neglected by adult males.
Boys are forced into out-moded gender role conformity.