That's a quote from Insty. Does Insty have any kids? I don't think so, but I don't know for sure. If he does not, then he does not appreciate the essential baby-sitting and child-care function of public education.
Home schooling is a fine alternative to government schools (designed for the poor), private schools (designed for the upper middle classes, and for parents desiring a religious education) and home teaching and tutoring (for the wealthy).
Somewhat related, I am re-posting Abolish Social Studies - Born a century ago, the pseudo-discipline has outlived its uselessness.
The invention of social studies is quite a story. Government psycho-social engineering of the masses. Brave New World. Did it work? Private schools rarely had such a thing, but they have History and Geography.