hidden ideas in well lighted places

In the end of A Clean, Well Lighted Place we begin to see that the old man does not just stay at the cafe drinking because he enjoys being a nuisance to the young waiter, but rather the old man spends his time in the cafe because he knows he has no one to go home to, so he would rather be at the cafe than be alone.  The young waiter sees the old man as a waste of space and this mentality is relative to the younger generations.  The old waiter realizes why the old man stays at the cafe and has an epiphany leading to the old waiter to sympathize with the old man. The old waiter and the old man stay in the shadows because they dont want to be seen because they feel like they arent worth anything to society.