Why does society need to ‘have a grip’ on education of my children?

Shena Deuchars:

Society does not “have a grip” on whether or not I feed or clothe my children. Why does it need to : “have a grip” on their education? The law leaves the primary responsibility for education with parents and provides for measures to be taken against parents who do not educate their children, just as it does for parents who neglect their children. What more is required?