little confused..?

I don't really understand why so many women are encouraging young girls to keep their baby's or to get/stay pregnant at 14-17.. I have seen it several times on here and I'm not really seeing why that's okay. It's really not a good idea at all, so I don't see why so many women are lying to them saying it's fine. It's not fine. You can have sex, but you need a game plan when you get pregnant. It's a lot of work and money.