The old song lyrics “I need a place to hide away” traditionally have applied to the bathroom in conventional culture. It was the one comfort zone in which to be alone. Don’t count on it. The New York Times says attitudes about privacy are changing, and cutting-edge bathrooms have translucent glass or acrylic walls that make the interior visible from other rooms. Joel Sanders, an architect and professor of architecture at Yale, has designed several see-through bathrooms. The shame about the body is not a factor for many clients, he told the Times. Ideas about privacy are more relaxed. Some...