I find it odd that you prefer only the rich kids get to have better opportunities.
For schools to be eligible for the vouchers they would have to pass an accreditation process that they meet the curriculum standards and aren't just a daycare sapping funds.
As it stands now the public schools have zero competition, and have zero reason to apply themselves. A little competition never hurt anyone. I can't think of a single downside, unless of course you're a lazy teacher, and that you might have to get off your ass.