system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do parents in lesser developed countries tend to have more children than parents in more developed countries?

It seems like in areas such as Africa and the Middle East, it's not uncommon for parents to have 3 or more children. Is there any direct correlation for this, and if there is a correlation, would removing it help the economy of these countries immensely?
gpt
Less knowledge of family planning, and less access to birth control. Beyond that, the less developed world relies on a lot of labor, especially farming, for their livelihood. Often, large families act as the labor force. In a more morbid sense, life expectancy is much less, so more children allows the family to continue when the sad inevitability of the loss of a child is likely to occur.