Oh my... 7 out of just 10 villagers? You shouldn't be seeing such repetition until you get a higher population.
My village is now 32, but when it was about 20, I had two villagers who looked EXACTLY the same, clothes and all. How confusing that was (And I didn't want to change clothes, because of the cost). Now one of them has white hair, so that's no longer a problem.
