Rather they have developed strong inducements to assure that children are born - one is rewarded with the status of full maturity when one marries and has children. Oftentimes, societies say that offspring are needed if your eternal salvation is to be assured - this is the basis of ancestor worship. Therefore, we can see that reproduction, like other forms of human behavior, will not occur unless it is motivated, performed with ends in view. To summarize, out major point is that for human beings, as far back as we can determine, sex and reproduction have been separated. People do not reproduce by instinct, they have to be motivated to reproduce.
Society actually regulates reproductive behavior.
Some customs, practices, and values limit reproduction. Other customs, practices, and values encourage reproduction. Let's take a look at these two separate sets of social forces. By so doing we will begin to see how reproduction is socially regulated. The social factors used to limit fertility are obvious in modern societies.