Here are the answers as to why an author includes dialect in a story: to allude to a character’s regional background; to allude to a character’s social background; and to add to the cultural context of a story’s setting. When we say dialect, this is the specific form of language that is used by someone who is from a specific region. In other words, this is called as a local language or vernacular. When this is added in a story, this gives it a more culturally specific form of approach.