Board Thread:Theories and Speculation/@comment-29769110-20170212133139/@comment-26369387-20170218232848

I don't know how much this'll affect, but I would just like to point out that Sharingan appears within Uchiha selectively, so saying "every Uchiha has Sharingan" is a bit false. Closer would be "most Uchiha with name(sans Mikoto) has Sharingan)