Different people speak differently. The differences are not only in what they say, but in the ways they say it: from the most obvious accents to subtle body language cues.
That’s one reason why writing dialogue is such a powerful tool for fiction. It helps you show what your characters are like instead of just describing those things to your reader. It hints at where they could be from, what level of education they have, how comfortable they are, or whatever you get it. There’s a lot of things.
