Going outside the system, to the extent it is permitted, is out of reach (or at least challenging) for the majority of parents. Whether you own or rent your home, part of the property taxes you or your landlord are forced to pay fund the local government schools. The fact that a good chunk of your hard-earned money goes to the local schools makes school choice unaffordable for all but the wealthy, who can afford to enroll their children in private schools, or the extremely dedicated, who teach their children at home. However, not even these parents can fully escape, because private, and to some extent home schools, are subject to stifling regulations as well.
Think Right or Wrong, Not Left or Right 