I hear that China is considering suspending its one child policy soon. Their population has stabilized.
Stabilized with 25 million more marriage-age men than women.
Unlikely. They make too much money in fines for non-compliance and charging people for second and third children, in a place where income and sales taxes are hard to collect for 95% of the population.
And it justifies the police state they need to control the population, while giving them a way to control them.