> This one area is unfair to the public schools.

One could say it's the entire point of them existing to begin with. Self-selection of the student body is the only thing that actually matters. The rest is a bunch of minor details. Everyone more or less intuitively understands this point but doesn't want to admit it in public.

And no, I do not see that as a bad thing. I see it as a great thing. It's the closest thing to public school academic tracking as we are likely to get. Other western democracies have this one figured out. They don't throw endless amounts of money into bottomless pits with zero expectation of a payback to society.

I would be nothing today if my very working class parents didn't have the ability to opt me out of the local urban school system. I likely would be dead or in prison. What they had going for them was "giving a shit" and a still-functional system where motivated highly engaged parents could opt out of the status quo. Most of my peers would have had similar stories if not for tracking and academically based magnet schools and the like. The system I was able to use to get ahead has since been torn down.

If it had been the choice of "pay for private school" or "go to the local public school" I'd have been forced into the latter with almost zero chance to succeed in life. I ended up back in that system my final year I attended K-12, and the education offered was laughable and perhaps 6-7 year behind what I had become used to. Plus a moderately violent environment on top of it all.