Conformity

Conformity, is the degree to which members of a group will change their behavior, views and attitudes to fit the views of the group. The group can influence members via unconscious processes or via overt social pressure on individuals.

With this, you now know what reason other people have on to why they have chosen the kind of lifestyle they have now.
They follow the trend, they look up on those totally iconic and soon act the way their idols act. Mimicking.