You end up with private schools with competitive admissions and terrible schools for the remnants, then, if you go with a 100% voucher approach. The expensive

You end up with private schools with competitive admissions and terrible schools for the remnants, then, if you go with a 100% voucher approach. The expensive to teach students (with disabilities, needing educational & behavioral interventions, etc) and those with absent / uncooperative students all cluster in one public backstop that almost certainly doesn't work well. I say this as a teacher in a private school. I'm well aware that my job is educator "easy mode" in many ways. Perhaps partial vouchers -- you get 30%-50% of what the state spends on an average student-- could help to expand choice and diversity in education while keeping a system of universal education intact. But 100% vouchers are a recipe for disaster IMO.