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<p>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&#x27;m looking at you Kirat Yoel) in order to replicate the same extra funds without the voucher headache on the private school school side.<p>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&#x2F;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