This article examines the reasons why Japanese are not having children and how this could affect the future of Japan's population. Factors such as a low birth rate, high cost of raising a child, long working hours for both men and women, gender roles and stereotypes, lack of support for working parents, and impact of technology on family life all contribute to the decreasing number of children being born in Japan. This could lead to further declines in population size over time if nothing changes soon.