Protectionism: Humans gradually evolved from apes, and their body hair fell off. In order to adapt to the living environment and resist the invasion of cold, humidity and the outside world, human beings have created clothes by using living materials. On the other hand, the protective effect of clothes on the body is also reflected in sun protection and reducing sweat evaporation.
The decoration says: 1, and the amulet says that primitive people worship totem and believe in animism. In order that evil spirits can't move forward and get God's protection, they wear some specific items to ward off evil spirits. 2. Symbolism says that people's clothes have some symbolic meanings and symbolic functions at first. Humans decorate themselves with colorful or easily recognizable rare objects to symbolize their strength and authority. 3 aesthetic theory: in order to beautify yourself. 4, gender differences say that primitive people always wear clothes. The clothes produced for the opposite sex were first displayed on leaves and bark to cover up their shame, and then extended to other parts, which is the embryonic form of clothes.
This is my own answer, about the origin of clothing, I hope I can help you.