A decade ago, I made a decision about my daughter’s education that I hoped would challenge New York City’s separate and unequal school system. Now 16, she thinks I made the wrong choice. “Did you know my school was bad like this when you decided to put me here?” she asked. My hands tightened on the steering wheel as I worked to keep my face neutral, buying a few moments to gather my thoughts. By dismissal time, Najya’s shock had turned to boiling, and the seatbelt had barely clicked before she was confronting me. I had braced myself for this...