Funny thing is, it wasn't even effective. Most of the decline was before the introduction of the one-child policy, and other countries, like South Korea, Taiwan

Funny thing is, it wasn't even effective. Most of the decline was before the introduction of the one-child policy, and other countries, like South Korea, Taiwan, Singapore, and Hong Kong (which is a country for these purposes; it has a different government, it's a country) managed to make it fall lower, without such legal barriers. It was a failure on multiple levels. See https://ourworldindata.org/fertility-rate https://ourworldindata.org/fertility-rate.