[capecodder]

The key distinction is that parents are exercising there choice as to how to spend their money (rebated through vouchers), not the school or government. The student is not a conduit for government funds in this case. The funds belong to the parent, not the government.

The funds are tax dollars, yours and mine, comingled. Once those dollars leave our hands, the money becomes government funds.

[Starwind]

Once those dollars leave our hands, the money becomes government funds.

But once the funds are returned via vouchers it's our money again. The only restriction being it must be spent on education (you can't buy a car for example, with it)