In countries with poor economies, there are problems with overpopulation, this is not the problem. The problem is a corrupt government that does not solve this problem well. Of course, as China, it is possible to strictly limit the number of children in the family, but why? It is better to create conditions under which all this large number of citizens will be involved in the economy, and this can give a strong jump in the economic vector of the country. It's just that the governments of such countries need to provide affordable schools and educational institutions, and then jobs.