These days, dual income households are common in Japan. Therefore, the ways to raise children have been changing. Most parents, not only mothers but also fathers, are able to take parental leaves, so it is important for fathers and mothers to raise their children equally, balancing their work and childcare. Also, in the past, most families in Japan were made up of grandparents, parents and chileren, so it was rare for children to be alone at home. On the other hand, families today consist of only parents and children, so children are alone more often than before. Therefore, it is essential to care the mental health of children. Parents should consider the academic aspects and precious lifestle of their children.