No it's the job of the parents to stand on their porch with a shotgun and chase that pervert off.
I don't know how things have been when you were young but while I was a teenager it was not uncommon that a 15 year old girl had an adult boyfriend. I doubt that many of them were perverts, I doubt that many parents were negligent and I doubt that these girls would have been better off if they had been forced to merely date immature 17 year old boys.
I am not arguing against statutory rape, it is absolutely necessary to prevent abuse. But it is also strange that what has never been a big issue in previous decades (I have been a teenager in the nineties), teenagers dating somebody slightly older, has suddenly become one.