@Invictus I'm not assuming anything about this woman's situation and am not commenting on it one way or the other. I'm just pointing out your assumptions, and saying that there are many many possible explanations for her situation that you clearly didn't consider. I have no idea what her circumstances are, maybe her life would be better if she were married to whoever the father is of these kids (or even one of the fathers of some of them, I don't know that much either). But I don't know, so I'm not making judgments about what she should or shouldn't have done.
It is implicit in your statement that you assume she didn't marry the father, and that her life would be easier if she had (In fact your exact words were "it would be a lot easier for her if she had married those children's father").
I'm pointing out you know nothing about her situation, and so to make such a judgment is pretty presumptuous, and rude. Maybe she did marry the father and something happened (maybe he died, maybe he left), maybe her life would have been much much worse if she had married this person, maybe you are right and her life would be better. The point is you don't know the circumstances, so saying that her life WOULD be better is pretty presumptuous, and frankly rather judgmental.
You know nothing about her situation, and yet you feel the need to disapprove of her lifestyle, despite knowing nothing about how she came to be where she is.