One possible reason could be that Naruto has seen the dark side of the shinobi world. He might have witnessed too much death and destruction in battles, and this has made him disillusioned. For example, if he lost many friends in a major war, he could start to question the whole concept of being a shinobi.
His relationship with Sasuke would be greatly affected. Sasuke, who has always been somewhat defined by his rivalry with Naruto as a shinobi, might not know how to interact with Naruto anymore. They could grow apart as Sasuke still pursues the shinobi path while Naruto abandons it.
One idea could be that Naruto discovers a new passion for art and decides to pursue that instead of being a ninja. He could start by sketching the landscapes he sees during his travels, and eventually move on to more complex paintings. This would lead to him leaving the ninja world behind as he focuses on his newfound love for art.
Maybe Naruto teams up with some non - ninja characters. Together, they could come up with new ways to solve problems in the village that don't require ninja skills. As a result, he gradually changes the view of the village towards non - ninja activities, which is a significant development in the fanfiction.
One possible reason could be that he has seen the darker side of the ninja world. Maybe he witnessed too much death and destruction during his missions and decided he no longer wanted to be part of it. Another reason might be that he has other dreams that he realizes are more important to him than being a ninja. For example, he could have a passion for art or music that he wants to pursue instead.
The relationships in the story could be different. Since Naruto is not aiming for the Hokage position, his interactions with characters like Sasuke, who was also involved in the power dynamics of the village in some ways, would change. Maybe they would focus more on other aspects of their friendship or rivalry rather than Naruto's pursuit of Hokage.
One possible reason could be the fear of losing his loved ones. In the original Naruto story, many ninjas sacrifice a lot, including their lives. Naruto might have seen this and decided he doesn't want to put himself in such a position.
Maybe he discovers other dreams or goals. He could find that there are other ways to protect the village and his friends that don't require him to be Hokage. He might be more interested in exploring the ninja world, learning new jutsus, or even teaching the younger generation about ninjutsu rather than taking on the political and leadership role of Hokage.
Well, it completely alters the traditional narrative. Naruto's connection to Konoha was a huge part of the original story. Without his desire to return, it changes the relationships he has with his friends there like Sasuke, Sakura, etc.
Well, there could be various reasons. Maybe the writer wants to create a unique situation where Naruto is silent to add mystery. For example, if the fanfiction is set in a scenario where Naruto has lost his voice due to a curse or some kind of magic. It could also be that the author is focusing on other characters' reactions to Naruto's silence, which can bring out different aspects of their personalities.