Teachers know your situation from the jump. There are questionnaires that get filled out by the student and the parent that get turned in to the teacher. The teacher can easil figure out if the child has a father in the home. I’d imagine the faculty works like a state funded pedophile network. All the teachers and admin probably share info about the kids. The kids get passed around to different classes and move on through grade levels. A father, active in the child’s life, really seems like the ultimate defense.