Paul Roberts studied the art of speech and the way it affects us as we are today. He cites the example of a small village with a thousand people who only hear their own language. He says how there is always a new language developing and many different expressions. Then the village is to divide in half saying that the difference is very strange.
He highlights how our speech communities develop first within the family and how they learn their primary language, aka what their parents speak. The child’s language develops by two “obvious motives” the desire to communicate and that to be admired. A child tries to imitate what they hear. But just because a language is learned doesn’t always mean that it will come out correctly. Roberts says that the child tries to conform to what they hear so as they can be admired and understood.
Children and even adults are often exposed to very many social differences in which class plays an important factor. When you walk around a college campus, the dialect is usually different than that of an elementary school or a business place.