Why do children wear mourning clothes after the death of their parents?

In traditional Chinese culture, wearing hemp and filial piety is a way of expressing mourning, usually used for a ceremony taken by children to express their condolences to their parents after their parents' death. The following are some explanations of wearing hemp and filial piety:

Phi Ma: Phi Ma refers to the fact that after the death of a parent, a child has to change into hemp clothes to express his or her mourning for the loved one. In ancient China, hemp cloth was a simple material for clothing, so people used it as a sign of mourning. In modern times, however, wearing hemp usually means wearing black clothes, which can also be simple garments, as a sign of mourning.

Daixiao: Daixiao refers to the mourning belt that children are required to wear after the death of their parents as a sign of mourning. The filial piety belt is a black cloth belt usually worn on the left arm and sometimes on the chest. The length and width of the mourning belt are regulated, usually one foot three inches long and one inch two minutes wide.

Expression of mourning: wearing mourning sashes is a way of expressing mourning, through which children can express their thoughts and respect for their parents, as well as show their sadness to the outside world. In traditional Chinese culture, parents are the closest relatives of children, and their passing away often brings great grief to children. By wearing mourning clothes, children can show their sadness to the outside world and express their feelings of remembrance for their parents.

Etiquette and culture: wearing mourning is also part of traditional Chinese etiquette and culture, which represents a cultural tradition and values. In traditional Chinese culture, filial piety is an important value. Children should be filial to their parents and perform mourning ceremonies after their parents' deaths to express their respect and gratitude to them.

In short, wearing hemp and filial piety is a ceremony in traditional Chinese culture to express children's mourning after the death of their parents, as well as a traditional ceremonial culture and value that represents filial piety and respect for parents.