Each village may have at least 100 of these granaries. Every village has a headman who acts as the authority to family lineages, rather than as the authority to individual households. Duun society is patrilineal in structure. This means that the lines of descent are traced through the fathers. Private property is inherited by the eldest son, while household property is passed to the younger brother of the father.
Married sons attach their households to the household of their father.
Instead, the groom gives premarital gifts to the girl's family. The gifts are usually animals such as chickens or goats. Like many other tribes in West Africa, the men sometimes practice polygamy, the marrying of several wives. In Burkina Faso, the Mossi tribe lives to the east of the Duun, and the two tribes are usually at odds with each other. Raids and retaliations occur often.