How do you do that if the government is subsidizing the schools through vouchers? If they're paying for it then they'll want a say in the matter.
^^^^^^^^^^^^^^^^^^
I completely agree with you. However, we can not just wait for the government schools to go away on their own.
I suggest tax credits, and insisting that government schools charge tuition on a sliding scale. Eventually, within a decade or two we can completely privatize universal K-12 education.
Tuition for my daughter at the local Catholic high school would run me about $6000 per year. If I can deduct that tuition it would reduce my state income tax by about $360. If you can't afford the tuition without the tax deduction then it's doubtful that you could with it.
The long and the short is that when people talk about tuition vouchers, they're talking about a state subsidy of private schools. And if the state gets into the job of subsidizing private schools then they should have a say in how they are run. And given that say then how long before private schools have many of the same problems public shools have?
The people who most need the government schools now probably don't pay taxes to begin with (or a very minimal amount) and wouldn't be able to pay the tuition, even on a sliding scale.
At one point in our history, parents did pay tuition for their children, but so many people couldn't afford it, and their children were not educated.