Hey there! Sometimes setting can be in another country, or even world, which may effect their ethnicity. Also, time can effect a person. It changes the way they dress, eat, sleep, and live everyday life. Like for instance, say you had a man who lived in america in the 2010s era. You would assume he would be of american ethnicity or have at least a bit of civilian in them, and they would usually dress in a t-shirt and jeans, with a nice pair of shoes. Now say you had someone from Arabia in the 1900s. He would be of Arabian ethnicity, and he would more than likely be wearing a sort of robe to keep the sand off of his body. Also, place can effect the animals they interact with. Say, for instance, the Arabian man had a stead. More than likely it would be a Camel. If the american had a stead, it would more likely be a donkey, horse, or mule. Also, because of the animals they interact with being different, they would also eat different food. Say for instance, the American. More than likely, he would eat Pork, Beef, or even Bacon. But if you had someone from Ireland or Scotland they would more than likely eat Lamb Chops, or even Liver. This sometimes effects the lifespan of the characters, depending on how healthy the food is. See, setting is a lot more important in stories than people think. These are only some of the many ways setting effects the way the narrator views the civilian. Hope this helped!

Thanks!

~Steve