To try hard not to mock sociology for being so ridiculous, man, no matter what, from all walks of life, will follow the same trends, both physically and mentally. We all have the same basic genome, just slightly modified to make us appear and feel different. The most noticeable, and definitely the most relevant one is fear. Not just any fear, more than vertigo, claustrophobia, etc, but the fear of death. The questions that have gone unanswered for centuries are ignored for this fact.
People are afraid of what they are.
Until you can come to the realization that you will die, that no matter what, no matter when, you will come to an end, you will live your life in fear, and you won t ask yourself these questions. Life itself is a marvel, something so hard to comprehend, that we struggle to define it ourselves. Our lives our lived in fear of death. Why bother learning and working, when nothing you do even matters. Why bother living, if, even if you make a difference, it isn t making any difference in the big picture.