Final answer:
The boy and others in similar distressing situations likely leave out information in their letters to protect themselves or because they feel hopeless about their ability to change their situations. This is due to the oppressive and controlling environments in which they find themselves.
Step-by-step explanation:
The question seems to revolve around the theme of censorship and the self-censorship that the characters in the passages resort to. The boy in the excerpts appears to be in a distressing situation, having been separated from his mother and feeling abandoned by his father. His father's letters to him are censored by an official, which implies a controlling or oppressive environment. The boy likely leaves out important details or emotions from his letters back to avoid further repercussions or because he feels that expressing his true feelings would be futile. Similarly, the other characters in the provided text excerpts also refrain from complete disclosure either due to intimidation, distress, or the anticipation that their pleas for help will go unheeded.
These actions might result from a combination of despair, a sense of hopelessness, and strategies for self-preservation in challenging and unjust circumstances. By leaving out certain details, the individuals engage in a protective measure to either shield themselves from further harm or because they believe that full disclosure will not alter their situations positively. The experience of feeling powerless and having one's communication controlled or ignored is a common theme that ties these narratives together, reflecting on the harsh realities of wartime, imprisonment, and family estrangement.