Are you at peace with yourself? Can you sit idle for a few hours doing nothing? Can you live with your thoughts?
Man is a social animal. We live in a community surrounding other humans. We are part of the system, and we call it society. It has norms that everyone has to abide by.
We are not trained since inception to live with ourselves and our thoughts, and few who tried became hermits or monks. They are not sane in the societal system.
As a result, solitude is not part of us, but running like a machine to earn, the breed is.