It's unfair because:
- the age difference wasn't huge. If you take into account that girls mature faster than boys they were probably even Stevens.
- the girl was a willing participant and knew what she was doing (and don't give me any of that "well technically she couldn't consent" crap).
- the mother can't blame it all on the boy. She knew her child was dating an older boy and she should have known in this day and age sex would come on the agenda sooner or later. She failed to educate her daughter on the problems with sex before 16. She failed to adequately supervise her daughter at the party.
The cops and courts are too busy to waste their time like this on cases of consenting young people.... Just because some old hag of a mother can't accept her little girl has grown up and she's partly responsible.