Why can't you wear a white belt?

Because according to the ancient custom, a white belt is worn only after the death of the deceased.

There is a saying in "Dressing in Hemp and Mourning" that mourning is worth leucorrhea. Folk funeral customs: After the old people die, their descendants will go to Dai Xiao in linen. Filial men should wear linen straw hats; Filial piety (including daughter-in-law) covers coarse cloth; Other relatives are all wrapped in white cloth (some clothes are covered with black gauze).

Folk funeral custom. In old age, children and grandchildren wear hemp Dai Xiao. Filial men should wear linen straw hats; Filial piety (including daughter-in-law) covers coarse cloth; Other relatives are all wrapped in white cloth (some clothes are covered with black gauze). Mourning the family or asking Taoist priests to recite scriptures and incantations, burning paper horses and sending the deceased to get on the horse and leave home. Also known as "mourning".