A man wants to know what color a woman's underwear is. Is this person mentally ill?

If a man asks a woman the color of her underwear, it may involve some inappropriate or disrespectful behavior. This kind of behavior may make women feel uncomfortable or embarrassed, so women have the right to refuse to answer such questions.

This behavior may violate the basic principles of social etiquette and respect for others. In social situations, we should respect the privacy and personal space of others, and avoid asking questions involving others' privacy unless it is necessary and appropriate.

If a person often asks such questions or behaves inappropriately in other ways, it may indicate that he has some psychological problems or difficulties. In this case, it is suggested to seek professional psychological counseling or treatment to help them understand and deal with their behavior.