What political cause is linked to Japan's falling population?

The political cause linked to Japan's falling population is attributed to the lack of investment in child care. In Japan, high living costs, job insecurities, and the demanding nature of work culture make it challenging for families to raise children. Insufficient child care facilities and support systems contribute to the decision of many couples to delay or forgo having children altogether. When the government does not prioritize funding or policies that support child care, it leads to a decreased birth rate as potential parents face barriers that discourage family expansion.

The other options, while they reflect aspects of policies or benefits that could influence family planning decisions, such as generous immigration policies or high parental leave benefits, do not directly address the core issue of inadequate child care support that is a significant factor in Japan's demographic challenges. In fact, Japan has restrictive immigration policies and has historically struggled to implement effective parental leave policies that encourage childbirth. Hence, focusing on the lack of investment in child care provides a clearer understanding of the political causes influencing Japan's falling population.