I'm not even talking about whose on the birth certificate, or of paternaty fraud. I'm talking, about for example, a 25 year old women with a 5 year old child with unmarried/divorced etc... who starts dating a new guy. The new guy is well aware of the fact he's not the father. The relationship disolves in about 2 years and even though the birth father is paying child support she decides the her last boyfriend should have to be too.
That means two men are paying for one child. This happens a lot. Guys are waking up to it and are afriad to commit to women with children based on this. Now this doesn't mean every women will do this, but as it's been shown things change. So the single mom, of no real fault of her own, only by designation of what she is, is now the 'hot patato'. Nobody wants her. Making her desperate, impovershed etc.... Which is why the government now has such a concern of children living in poverty. And no doubt the children they are referring to are with single moms who are unable to really bring in a substantial incom.