Ambiguity

Exactly why does Bartleby always "prefer not to"/ Why cant he make friend ,or communicate? Whats at the heart of his rebellion? Why doesn't he quit and get a different job? Why does the Boss have sympathy for Bartleby? what else in the story seems open to individual readers 'interpretation?

Bartelby always "prefer not to" because he is depressed about his life and is tired of being ordered around constantly. While reading the story, I constantly thought that Bartelby was a ghost because he was always in the office. When you're working day and night, it's very hard for a person to meet a friend or communicate to others outside of work. Bartelby doesn't quit the job because he realizes that his boss is a one of kind by letting him work and reside at the office. If Bartelby was to get a different job, he would be forced to find a place to sleep. The boss have sympathy for Bartelby because of his quiet, shy personality. The boss notices that Bartebly isn't the sociable type as his other scriveners. I believe that there isn't a specific interpretation, however a general interpretation due to the story's dull details.