Board Thread:Naruto News/@comment-945885-20150423073012/@comment-24995794-20150501021155

Man of Sin wrote: You utterly missed the point. There is nothing stopping a person from wearing an Uchiha clan symbol if they want to. Sakura is obsessed with Sasuke, remember?

Yes there is, this is not any clan, to the eyes of the world this is the despised uchiha clan (Madara and Obito), the clan that started a war that brought death to a lot of people (families) and almost destroy everything. Because that, Konoha can't allow anyone to use that crest carelessly.

The only reason Sakura is wearing the crest is because she has been the head of the uchiha clan for 12 years, meaning that to Konoha and the world she is an uchiha.