system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why doesn't the United States have similar population issues as India and China?
gpt
Being rich, and womens' rights.

Poor people have more kids, this is a well known fact.  People working on farms in rural India don't have tractors, they need as many people as possible to help work.  They don't have social security, so they need lots of kids in the hope that at least one will be able to take care of them when they get old.  They don't have insurance, so they need daughters to marry off to men in other villages (with different weather patterns) to support them during droughts.

Secondly, womens' rights.  Everywhere in the world, the rise of rights for women leads to a decline in fertility rates.  As women can work and earn more money, the opportunity (EDIT: opportunity *cost*) of having another kid increases.