. . . but not to teach, unfortunately. Louisiana recently passed a bill to expand school vouchers for kids in failing schools. The teachers unions are not big fans of the initiative. The opening legal salvo of one of the state's largest teachers union (together with 47 local affiliates) is a lawsuit seeking an injunction on state constitutional grounds. The lawsuit flopped at the initial stage but will go up on appeal.
As a backup strategy, the union has sent threatening letters to the private schools that expect to receive voucher funds, asking them to return a letter acknowledging that there are serious constitutional problems with receiving the money, and promising to refuse to accept it for the time being. Otherwise, of course, the union threatens them with a lawsuit as well.
Competition is uncomfortable.