Board Thread:Theories and Speculation/@comment-34661853-20181111160651/@comment-32685487-20181116181432

Neither did Madara or Naruto or Obito. Madara needed a Hashi face on his chest. Naruto has a Hashi arm yet still no. Obito needed Tobi to be able to use Wood Release. So Wood Release is def part of Hashi's DNA but something about his head/face is what makes it usable, hence Danzo and Madara being able to use it when they had the faces. Madara even says he wanted to try them out when he realized he had a Hashi face on his chest.