to-mensuru-yochien-kyoiku-no-kadai-%e5%bd%93%e9%9d%a2%e3%81%99%e3%82%8b%e5%b9%bc%e7%a8%9a%e5%9c%92%e6%95%99%e8%82%b2%e3%81%ae%e8%aa%b2%e9%a1%8c-problems-faced-by-kindergarten-education-4p6l85zu