Currently, that is probably true, but that is not what school choice advocates are arguing for. The major idea is to let the parents and children spend the money that would normally be given to a failing monopoly and let them choose where to spend it.
The money is being wasted in the public schools, something almost everyone admits.
Also, if we started issuing vouchers to every student it would probably result in a tax cut for all property owners in the country.
So instead of having public schools, we would close them all down.
1.No more busing. Individual parents deliver & pick up their kids. Enter the shorter work week, and explosion in gas consumption.
2.No more school lunches. Kids go without lunches.
3.No more sports. Kids stay home & play Nintendo.
4.No school library. City libraries are overrun causing taxes to increase.
5.Special, problem, or poor children are left out. Private schools take the cream of the crop, and the rest can stay home, not their problem.
6.Vouchers start up a whole new government program. Private schools protected, inspected, regulated, licensed, mandatory insurances, law firms for suits, educational standards, testing, etc. You just shifted the business end of public education to private over site.
7.Teachers go to work for private schools, organize Unions and things are back to normal again. Or they can strike & picket a school into submission, lost school days, violence across America, etc.
Just a few ideas of what you are up against here, and the futility of vouchers in America. I can just hear the Parents Howl.