I don't mean to be rude, but have you noticed what's happened to the Bill of Rights lately? Are you aware of Wednesday's decision on freedom of speech? You will be if you try to say anything publicly about a political candidate :-(.
Hillsdale College (www.hillsdale.edu) refuses to accept any government funds, in order to be free of government regulation. This includes - particularly germane to our discussion - not allowing students to use government financial aid of any kind ... no grants, no guaranteed student loans, nothing. The government required control if a single student on campus were using funds in any way connected to the government.
Some people think this wouldn't be a problem with education vouchers for primary/secondary education. I disagree. Currently, parents can use private schools or homeschool with minimal (varying by state) interference by the government. The school systems and the states and the Feds HATE IT. They would love to have parents taking government funds, so they could take control of private education.
A better option, in my opinion, would be to give all the taxpayers back the money that's being spent by the government on education, and let parents buy the education they want. At one time, our country had private schools for those who could pay, and private charity schools for those who couldn't. It worked fine. John Taylor Gatto and Samuel Blumenfeld, among others, have written on the history of the U.S. education system; their books are in the libraries, and many articles online.