When I have more time, parents can use the potential of their abilities to do tasks that are beneficial to the self. Societies and Nations, which equals the country's human resources, quality increase.
When parents have more time to use the potential efficacy of their work that benefits their society and nation. Which country has the resources to increase quality.
When there is more time parents can use the potential knowledge and their ability to work with benefit themselves, society and country. The country has good human resources increase.