I recently was introduced to a 15 year old girl with a 2 year old kid...her boyfriend had been living with her (and her parents) for a year before she got pregnant. I don't know what those parents are thinking. I don't want to know what they're thinking. I'd just like to see them charged with child abuse for letting the boyfriend move in!! 
Shades of a good deed gone wrong.
This happens in family's that that are educated and should have common sense.
I ran into this in Tenn. a coworkers mother allowed a 12 year run away boy to move in and after a year or so the daughter at 18 was pregnant. The mother was handicapped , lived in a trail or out in a field off a dirt road.
My coworker was grossly over weight and had never had a boyfriend, the fact her mother allowed her to work at all was surprising. After a month or so of riding in to work with this pregnant woman she told me her mother wanted to meet me.
What an eye opener that was, the mother was a skilled Grifter, she had somehow gotten information on my husbands family and claimed they were related. When I asked my MIL she said she had never heard of the woman.
What ever was going on in that home was nasty, and very disturbing. The daughter quit work the next week and I never heard from her again.
Weird shit that happens in life.