What is a tribal community? Could people survive without this organization?

A tribal community is a form of social organization (community) where people are linked by kinship, collective labor and consumption.
no, they could not survive, during that period there were very difficult climatic and living conditions. All members of the tribal community were jointly engaged in hunting, gathering, making tools and processing prey. Dwellings, supplies of food, animal skins, and tools were considered common property. At the head of the clan were experienced people, as a rule, older in age (leaders or elders). All the most important issues in the life of the community were decided at a meeting of all its adult members.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.