I think you’re looking at it wrong. The prompt is to make an image of someone who is recognizable as Indian. The turban is indicative clothing of that heritage and therefore will cause the subject to be more recognizable as Indian to someone else. The current rate at which Indian people wear turbans isn’t necessarily the correct statistic to look at.
What do you picture when you think, a guy from Texas? Are they wearing a hat? What kind? What percentage of Texans actually wear that specific hat that you might be thinking of?
I think you’re looking at it wrong. The prompt is to make an image of someone who is recognizable as Indian. The turban is indicative clothing of that heritage and therefore will cause the subject to be more recognizable as Indian to someone else. The current rate at which Indian people wear turbans isn’t necessarily the correct statistic to look at.
What do you picture when you think, a guy from Texas? Are they wearing a hat? What kind? What percentage of Texans actually wear that specific hat that you might be thinking of?