Population control, sterilise the masses??!!

People are sterilising themselves, no methods of population control are needed. Wait till the Millenials and Generation Z grow up in developed countries and you will see the results of the physical inactivity

Wait a bit more for the less developed countries to reach the level of nowadays and then the massive sterility among people will also take effect.

Sooner or later, the world population will stabilise or even start declining.

Population control methods will not be needed, as people are doing better job themselves.