[Brooklyn Attitude]

The poorest countries tend to have the highest birth rates. Maybe because sex is one of the few joys they have.

[Clemenza]

Every country that has become urbanized has seen their birth rate drop dramatically. In an agrarian society, sex is literally the most popular form of entertainment.

[entropy12]

That is true, but from what I have seen growing up in a poor country, the poor people simply can’t afford birth control expenses.