Board Thread:Theories and Speculation/@comment-33485854-20180927155618/@comment-1512913-20180927194411

And I theorize that without Hagoromo's interference, Naruto would not have necessarily awakened Six Paths Senjutsu and Sasuke would have eventually gotten (years later) the dual Rinnegan without being able to use Sharingan at the same time, same as Madara.

Also chakras of all 9 Tailed Beasts in my opinion do not equate Six Paths Senjutsu, chakras of all 9 Tailed Beasts + nature energy does. Since Naruto already knew how to use Sage Mode, amplifying the Sage Mode with some chakras from all 9 Tailed Beasts resulted in Six Paths Sage Mode. But Naruto didn't figure out and do this on his own, Hagoromo activated it in his body. For Sasuke, not sure what Hagoromo did besides making the process faster, since it resulted in a unique thing.