Belonging to a Group

Dave Pollard makes an observation in his blog about the importance of self-esteem regarding the power of belonging to a group:

The need to belong is so strong that if we can’t find healthy, constructive, inclusive places and groups to belong to, we will choose unhealthy, destructive, exclusive ones and pick up their behaviours (gangs, snobs, addicts).

This provides some insight into subcultures with behavioral norms that I do not understand, such as terrorists, gangs, skin heads, fraternities, tribes, etc.

People need to be in a herd!