What is the reason behind the Iranian authorities' promotion of larger families?

Overpopulation is a term used to describe the situation where the number of people living in a given area exceeds the capacity of the environment to support them at a reasonable standard of living. It is a complex and controversial issue that has been the subject of much debate for decades. One of the key factors contributing to overpopulation is the rapid increase in the global population. The world's population has more than doubled since the 1960s, reaching over 7.8 billion people today.