As a child who was homeschooled I can testify for the lack of structure and substance. 75% of homechool families are on a faith basis with the mother being the primary instructor. Most have no college degrees or any teaching experience.
Homeschooling also leads to an extreme decline in social skills due to seclusion in the home and prolongs the stage of a child that believes whatever their parents say. Homeschooling and unschooling are detrimental to the education of society. As a result I believe we need to end this so called freedom.