check this comment
https://peakd.com/hive-153850/@davideownzall/re-gwajnberg-svt0gx
Here we have an example of a country with declining birth rates. But in many places that give this help proportional to children, it is more an assistentialist way of thinking. They want families to avoid poverty, but everytime that you offer hands to people, they want their arms, legs etc lol