The counterargument is that they won't be, because private schools can fire bad teachers, refuse to hire bad teachers, and refuse to offer service to customers they don't like, e.g. disruptive hooligans etc. When both systems are in place, I expect that some very good meritocratic schools will emerge, while bad teachers and bad students will precipitate at the bottom of the barrel, in a few bad public schools.
Actually, there's quite a market for schools that take the disruptive hooligans - many reform schools are private.
In principle, regulation may try to homogenize that somehow, but then all the parents in the mid-level and best schools will fight tooth and nail to prevent regression. Once the spirit is out of the bottle, putting in back in will not work. As the situation stands now, it is a dictatorship of a malignant minority (leftist bureaucracy, bad teachers, hooligans and retards, bad parents) over a disorganized majority which has no viable legal alternatives. Ergo, my point about breaking up the current power structure by the trojan horse of vouchers.
You have a point.
Another thought is that we're not just talking about the spawn of parents - we're talking about kids that are growing up. While I'm all for parental responsability, fact of the matter is that people breeding aren't yet into their optimal earning years, and a good education(or any education in general) is essential to being a productive, independent adult.
Ergo - We're not helping out the parents with vouchers - we're helping out the
kids.
Heck, I had a thought recently - given extended lifespans, longer maturity times, etc... The fact that young adults - teenagers really, are actually best suited for having babies. They're just not the best to take care of them properly. I wonder what it'd be like for a theoretical society that the teens had kids, but their parents(the kid's grandparents) took care of them. IE the parents are 16-21, grandparents 32-42. The GP's are in the position to be able to do something about education.