Yes, provided that the vouchers or tax credits would eventually lead to **complete** and total privatization and **complete** separation of school and state. That means parents pick up the entire bill and charity funds the poor.
On the college level, the problem with the Pell Grant vouchers is that every time the voucher is increased, the colleges and universities raise their tuition. This means the more and more of the middle classes must look to the government for a voucher to pay the tuition, and students are burdened with more debt that the voucher doesn't cover.
If we have vouchers for K-12 education we **will** see the ***same** thing! Private school tuition will continually increase.
I support vouchers but only as a stop-gap measure. The only permanent solution is complete separation of school and state.