The Japanese government has unveiled a policy aimed at promoting the implementation of decentralized water supply systems. This move forms part of a larger initiative to revamp the country's aging infrastructure and to ensure a safer, more reliable supply of water resources. While the specifics of implementation are yet unannounced, the move has been welcomed as an innovative solution to tackle the challenges presented by a declining and aging population.

Water infrastructure is a pressing issue in Japan due to its rapidly aging and declining population. Implementing decentralized water systems is seen as a forward-thinking move as it would enable communities, especially those in rural areas, to be more self-sufficient. Moreover, it integrates high regard for safety and sustainable use of resources, which is a fundamental value in Japan.

In the US and EU, decentralized water systems are also seen as a viable solution to water management problems. These regions have undertaken water decentralization both for sustainability and to combat aging infrastructure. Its broad acceptance in these areas further validates the Japanese government's move.