The number of single-parent households has continued to increase since 1993, while the number of children in Japan’s aging society has not. In 1993, the number of single-parent households was less than 800,000, but in fiscal year 2008, the number of single-parent households increased to 123,000, a 1.5-fold increase. According to the White Paper on Gender Equality, 2028 edition, the number of single-parent households has continued to increase at …