Japan has experienced a consistent decline in its child population for the 45th consecutive year, with the current count at 13.29 million. This demographic change is due to a combination of a low birth rate, high cost of living, and societal expectations. Despite the government's efforts to increase birth rates through economic incentives, Japan is yet to counteract its alarming demographic trajectory.

Japan's declining birth rate has been a critical social issue for decades. The country's strict societal norms, high cost of living, and increasing pressure in work and education spheres have driven many to delay or entirely forego raising a family. This trend is resulting in a decline in children's population and an increasing aging population, exerting tremendous pressure on Japan's social security and economic systems.

In contrast, the US and EU have seen a balance in their population demographics due to a mix of birth rates and immigration. While they have their challenges, such as varying birth rates across states or countries, they manage population growth through policies encouraging family growth and migrations.