I am pretty serious. What qualities makes Obito a mentor to Sasuke? All he did was tell Sasuke the truth about Itachi, not giving any advice or teaching him any jutsu.. literally Obito told Kakashi, Yamato, and Naruto that he was lucky that Sasuke did what he wanted him to. Okay he did plant Itachi's eyes into Sasuke but that still isn't mentorship, that's basic optometry surgery. All the others trained him or guided him in some fashion. I just don't see how Obito helped him make any decisions nor ever literally train him. Sasuke could have wanted to destroy Konoha regardless of knowing Itachi's past, Obito just got lucky in that regards. In summit arc, Obito literally saved Sasuke but still didn't teach him anything or guided him. That's just my reasoning behind it.