comment on style / language

The story is written in the language and understanding of a 5-year-old who has literally been cut off from contact with anyone other than his mother for his entire life. His speech patterns are different than that of a typical child who has been exposed to constant contact with a variety of adults. These patterns make some of Jack's thoughts and conversations difficult to follow. It seems reasonable that Ma and Jack would develop some of their own language idiosyncrasies because they depend on each other for communication.