The document discusses two reasons why people wear makeup. First, people use makeup to appear more attractive in order to gain socio-economic advantages. Makeup enhances physical appearance to attract potential partners, and good-looking people tend to be wealthier. Second, makeup is used for self-image governance and positively impacts self-esteem and psychological well-being. Applying makeup makes people feel more confident and happy by modifying their appearance to align with societal beauty standards.