This is the part of Obito/Madara story I am kinda confused on. Obito had his right eye but no left eye. At the point that Obito met Madara, Madara must have had the Rinnegan, or if he didn't, during the duration that Obito was with Madara attained the Rinnegan. What I don't understand is once Obito turned to the 'dark side', why didn't he give Obito the Rinnegan? It has been proven that you can revive people with only one Rinnegan by Obito so why didn't Obito receive it? Why did this seemingly random child, Nagato receive it? Obito would have probably awakened the Rinnegan very quickly compared to Nagato for all we know could have sold Ramen for a living and never awaken it.
Simply put, Why did Nagato receive the Rinnegan over the more obvious choice, Obito?
Simply put, Why did Nagato receive the Rinnegan over the more obvious choice, Obito?