Problem is, many (most) people with kids in failing schools can't afford to send their kids to a private school.
The GI Bill has been paying for veterans to go to religious schools for decades, so that precedent has been set. Why shouldn't the tax money that is set aside for a kid's education follow the student to whatever school is chosen?
Did I really read that???
Of COURSE rent payments cover the taxes; it most definitely IS a certainty. A landlord must recover ALL his costs of the building when he rents it, and one of those costs is property taxes. So, while a renter doesn't directly pay taxes, the landlord does, and that money comes directly from the tenant.
We all do benefit from a publicly-funded education program (though there are huge doubts about how effective the government-run programs are working). And only taking money for education from people with kids in school would make it prohibitively expensive for many of those parents.
Vouchers would change all that. The money that's earmarked for a student could follow that kid to the school of choice. Poor parents would more likely be able to send their kids to a better (or private) school. The schools would have to <gasp> compete for their business. Different schools could tailor their curriculum to the demographics they wish to lure; one school might emphasize the arts, while another might specialize in business, and yet another on the skills necessary for engineering. Some could lean to the Left, others to the Right. The parents would have a choice on what they want their kids to be exposed to.
The education would still be publicly-funded, and spread around a large tax base.