It creates constitutional issues that end up raising costs. Essentially, a school that is parochial, in order to take the vouchers, have to do crazy things lik

It creates constitutional issues that end up raising costs. Essentially, a school that is parochial, in order to take the vouchers, have to do crazy things like run as 2 separate corporations under the same roof, with all the headache that involves What essentially ends up happening is long term refusal of the vouchers, private school prices go up, or you see alternatives that are even less constitutional (I'm looking at you Kirat Yoel) in order to replicate the same extra funds without the voucher headache on the private school school side. Interestingly, in order for them to actually compete, you actually have to massively fund the school district as a public school, a la Great Neck North/South, or some of the suburbs of San Francisco, where you regularly hear about crazy good private and public schools with about equally good outcomes for their students