Illegal gangs

Why do people join illegal gangs anyway? Some people don't join gangs but they join clubs or other organisations, does this serve the same purpose and joining gangs. The answer is yes. We all want to have some kind of security and this comes from knowing who we are. In a society that is deeply concerned with every persons rights we have forgotten the deep need that everyone has to belong. Belonging to one group is seen as interfering with someone else's right to be who they want to to be. However, we all want security and we seek to define ourselves by the company we keep or the organisation we belong to. Illegal gangs have well defined rules and everyone knows who they are are and they feel secure.