Board Thread:Theories and Speculation/@comment-34661853-20181111160651/@comment-30323490-20181116145105

Uchihas don't have Indra's chakra by default. The only people who had Indra's chakra throughout the history were Sasuke and Madara. And having the sharingan is also not required to have a rinnegan. The only recorded way (for humans at least) to awaken the rinnegan is to gather both Indra's and Asura's parts, which is what Madara and Sasuke did. Naruto didn't receive from Hagoromo Indra's chakra/DNA whatever.