Although in your defense my great grandmother was Cherokee and I have other Native American ancestors from other sides of the family, and apart from my facial structure (barely) and the fact that my skin turns light brown/red with sun you can't tell at all, even though I'm more than enough to legally be a citizen of the Cherokee Nation.
Also Chewey, Sofia jokes about the assassins still wearing hoods in the 16th century at the end of Revelations, Ezio explains it as a homage to Altair. Why a half-redskin colonial American is wearing an 18th century military jacket tailored with a hood, chaps, and moccasins however, is beyond me.