Those chapters were very interesting because it is the real beginning of something, Shepard starts to rise up. He accepts any kind of jobs, and sacrifices a lot in order to make some money and have an acceptable cash income. At the meantime, he starts being accepted which is very important. He starts making friends and really appreciate the camaraderie, that he will be missing a few chapters laters when he moves out. Shepard proves that he wants to get out of there, that he truely desires better living conditions. People around approve that behavior, and solidarity emerges.