My point is more that a voucher system would tend to hollow out bad schools, taking out the more high-functioning kids. Perhaps they would hollow out the ranks

My point is more that a voucher system would tend to hollow out bad schools, taking out the more high-functioning kids. Perhaps they would hollow out the ranks of teachers as they'd prefer to work in a safer/less crazy-making environment. Don't get me wrong, I don't hate the idea of vouchers.