Maybe it's because a lot of Naruto fanfiction has become very clichéd. There are always the same overused plotlines, like the main character being an overpowered self - insert. People get tired of reading the same thing over and over again.
Perhaps Naruto feels that Kushina is being overprotective. He wants to prove his independence and go on his own adventures without her constant supervision, so he decides to run away.
One possible reason could be that Naruto might be afraid of the intense training Jiraiya has in store for him. Jiraiya is known for his strict and grueling training methods, and Naruto, being young and sometimes impatient, might just want to escape that for a while.
In fanfiction, it could be a way to create new plotlines. By having Naruto stay away from Sakura, new conflicts and story arcs can be introduced. For example, it might lead to a situation where Sakura has to re - evaluate her own feelings and actions towards Naruto, or it could create a rift between them that other characters have to help bridge in the story. Also, some writers may simply not be interested in the typical Naruto - Sakura relationship and choose this as a way to deviate from the norm.
Maybe he feels misunderstood by his family. In many Naruto stories, his family situation can be complex. If he's 'godlike', he might have powers that his family doesn't understand or fears, leading him to run away to avoid conflict or being treated differently.
Maybe he's running away from the pressure in the village. There are always high expectations on him, and he might feel suffocated and need some time alone to figure things out.
Well, Naruto is a very popular anime. Everyone loves it. Fanfiction based on it gives people a chance to be creative. They can continue the story in their own way, or even change some parts they didn't like in the original. It's like building on a well - loved foundation. Also, it can attract different types of fans, those who like action, those who like drama, and those who like character development, all can find something in Naruto fanfiction.
Because Naruto has a huge and diverse world. The fanfiction allows fans to explore different scenarios, relationships, and adventures that the original might not have fully delved into. It gives them a chance to see their favorite characters in new situations, like imagining different pairings or what would happen if a certain battle had a different outcome.
The Naruto universe has so many interesting characters. Everyone wants Naruto fanfiction because it gives a chance to dig deeper into these characters. For example, we can see what Sasuke would do in a situation where he has to team up with Orochimaru again. Fanfiction lets fans be creative with the existing Naruto world.
Harry might walk away because he has a new mission that he can't share with others. He realizes that to protect the wizarding world in a more fundamental way, he has to go it alone. So, he quietly walks away from his normal life to pursue this unknown and dangerous task.
The Naruto universe is rich and full of possibilities. Everyone wants to adopt Naruto fanfiction because it can be a way to fix some of the sadder parts of his story. For example, in the original, he grew up alone without his parents. In fanfiction, by adopting him, writers can give him a more loving and supportive family environment. This can lead to all kinds of new adventures and character development for Naruto. It also allows fans to show their love for the character in a very personal way.