Why did the Uchihas never try to learn Sage Mode? Jiraiya, Naruto, Hashirama and Kabuto were able to enter into Sage Mode. One who enters Sage Mode possesses more abilities than a normal ninja. Why did the Uchihas never try to learn Sage Mode? Is it because of the Sage of Six Paths dividing his power among his sons?
Sage Mode requires a large chakra pool. Most Uchihas can't learn it because of it.


  According to Fukasaku, only those who already possess "extreme chakra levels" can utilise natural energy to invoke senjutsu.