space between individuals are knowledge based or what?

Be near someone. Feel the gaps and the distance you are with him or her. Mentally how far? Physically how far. Psychologically how far. Does all those question pointed out to the fact we are not equal regarding relationship of one and another. How come it has been that way? Could it being based one possessed? Or what? Or what? Is it not interesting to find out? Wallahualam. Allahuakbar.