system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do poor people tend to have way more kids than better off people?
gpt
A few reasons.

* Women who start having kids earlier tend to have more kids. Women who tend to start having kids earlier also tend to become poor.

* If your career/lifestyle is making you happy/satisfied you don't feel the need to have kids to make you happy. Unfortunately for a lot of poor women they get their sense of happiness through their kids.

* Birth control isn't free or automatic. Poor women are less likely to be able to not only afford it but know how to use it properly. 

* It costs far more to raise a kid in a middle class family than a poor family. So middle class people are less likely to have more kids. 

* Making poor decisions is fairly common among poor people. That's what keeps them poor rather than lower middle class. This goes not just with education and financial decisions but also decisions of when/how to have sex.

* Heavy drinking/drugs leads to unprotected sex. Heavy drinking/drugs also commonly leads to being poor.