I donated a ton of books to my local library recently... those that my neighborhood folks didn't pick up off my stoop under the "free books" sign.
It was very surprising how many duplicate books my wife and I had after our collections commingled.
Anyway... I am of the opinion that one very major contributor of poverty is the wide spread belief that unbounded reproduction is a god-given-right (TM).
If you can't afford the money or time to feed, care, and educate your children, then you cannot afford to have them... not that someone else has to do it for you / subsidize it.
If you want poor people to be able to move out of poverty, you quit penalizing the kids and start providing adequate family supports to those who need them--minus all the shame currently associated with such.`
If you want people to postpone having children then you help them access education so that they see a future for themselves aside from making babies.
If you don't want poor people to have babies, you make highly effective birthcontrol cheap, safe and easily affordable/accessible. You also make prenatal care cheap and easily accessible (geographically, economically, societally) to best help ensure that children are born healthy (and less expensive to the state and less of an impediment to their parents completing their education and achieving career goals). You make health care at ALL socioeconomic strata and in all geographical and neighborhood locations cheap and accessible and excellent.
Same thing with education.
Every child should have the best possible chance in life.