User blog comment:Pauldin91/Garp has Haoshoku Haki/@comment-28573618-20160926014816/@comment-29997233-20161003232709

Be 100% sure about it(hereditary)...At the time Luffy unleashed it at MFWar Garp said exactly the words "He inherrited, as I though"(or the translation exactly....) that directly generates the questioon "From Dragon?And dragon must inherrited his by Garp ,obviously!!!",I can t think the possibility that Dragon and Luffy can use it without Garp can...It seems like the throne of a royal family which is passed through every generation ...the throne goes from father to son... The thing I can wait to see is Why Garp joined the Navy...???...I can tell that he insisted about Luffy and Ace to join for their protection ,because that way noone ever would have searched about Ace and Luffy would Have had an alibi for being Dragon's son....But why Garp is  a Marine ???