On a related note, while some may think that this is a consequence of China's one-child policy, a reasonable argument can be made that the policy was actually completely unnecessary: the fertility rates had already started plummeting for the 15 years prior to it being announced due to urbanization and other factors:
Another article supporting this statement, on Chinese demography [1][2]. You may find it interesting.
[1]: https://noahpinion.substack.com/p/chinese-demography
[2]: https://news.ycombinator.com/item?id=25558016