Why Do Friend Groups Form?

You have watched a disagreement split a group into camps. A decision came down, and within days the people who favored it were eating lunch together while the people who opposed it whispered in the hallway. No one drew the line. Everyone knew where it ran.

This lesson explains why people take sides, what holds an alliance together, and what dissolves it the moment its reason for existing disappears. You will learn to trace any faction back to the shared interest or shared threat that formed it, and to make a harder judgment most observers never reach: whether a given alliance serves the larger group or feeds on it.

The full distinction, the one that separates a team pulling toward a deadline from a clique capturing what belongs to everyone, is developed inside the course.