Naive Matt

So i must be pretty naive or i just never really thought about it before, but heres the apparent story going on in some "christian homes"

If your christian son or daughter dates a non-christian boy or girl you are supposed to disown them, and if they get pregnant or get somone else pregnant, you are supposed to cast them into the street to fend for themselves, something about that seems off to me

Now granted their is no real reason for them to have gotten pregnant, but ok, children are immpresionable and if their parents are gonna do this to them, they clearly are not good parents (I'm sorry but thats just the way i was raised i guess)

Now i am not saying this blog from personal experience, nor do i know someone who is going through this right now, i know people who know people who this is happening to... could anybody elaborate for me?