Why do people come together in groups? What does a group give a person?

People are social beings who cannot live without society and entering it. It is important for a person to belong to something, to depend on something in order to exist and interact with others. Everyone needs to know the scope of their actions and the “plan” of action. And this is only possible in a group. In addition, by joining groups, a person realizes his needs (for power, belonging, respect, etc.). In turn, the group gives each individual security (or its appearance), the possibility of self-realization and the possibility of interpersonal interaction.