Once on a marching band trip, one of my classmates showed up wearing a shirt with a Confederate flag on it. I remember feeling uneasy contemplating the views that this person had—it seemed like they were promoting hate. The band director wasn’t allowed to tell the student to change their shirt because our school’s dress code doesn’t cover flag T-shirts, so she asked all of us to put on our uniforms instead. It was an awkward situation that made many of us feel anxious. If a student is wearing something that makes their peers feel uncomfortable or unsafe, teachers should be able to say something about it—and a dress code gives them the justification they need to do just that.