It wasn't until I had kids of my own, whom I first sent to public school, and my mounting horror at what was being done to them (brainwashing), and not being done to them (education). I also saw what they could be doing, when we saw the available curricula at an HS fair.
When I fell, I fell hard. (c8
One of the very best decisions we have EVER made, and one of the few that I have NEVER even WONDERED afterwards if it was the right decision which, for me, is really saying something.