Problem: A preschool classroom has a single "unisex" bathroom with three child-size toilets. The three-year-old children seem comfortable using the facilities in each others' presence, occasionally commenting on physical differences they observe between boys and girls. The teacher believes this is a healthy way of learning about gender. The parents of one child are shocked, however, and want the teacher to ensure that boys and girls never use the bathroom at the same time. How would you handle this situation?