Well, it could be that the author wants to show Harry's perseverance and growth through constantly dealing with unwanted attention. It makes his character stronger.
It might be to explore the theme of Harry's inability to find peace, even in the fictional world. This could lead to deeper character development and story arcs.
Perhaps he's following a lead related to his parents. There could be some secrets about his family that are hidden in America. He goes there to uncover the truth and learn more about his family's past that might not be available in the UK.
Perhaps they respect the original story too much. The events that occurred in the Harry Potter world are already so well - established. They don't want to add or change things through fanfiction. They are part of the story, and for them, it might seem strange to write fanfiction as it could be seen as interfering with the integrity of the story. And also, they may lack the motivation as they are living the story rather than just being fans who might be more inclined to write fanfiction.
In some fanfictions, Harry might leave because of Ginny due to a misunderstanding. For example, he could misinterpret Ginny's actions or words as a sign that she no longer loves him or wants him around. This could be something as simple as seeing her chatting happily with another guy and jumping to the wrong conclusion.
It's likely to have themes of dependency and isolation. Maybe the characters are in vulnerable situations and seeking connection.
He could be disillusioned with the wizarding world's politics and power struggles. So, taking his money and leaving is his way of getting away from it all. He might feel that he can't make a real difference within the existing system and decides to find his own path.
In some fanfictions, it might be because Snape exposed a secret of Harry's that led to his departure.
It could be that in the fanfiction, there are circumstances that make Harry think that way. Maybe there are magical forces at play or some hidden family secrets.
Hogwarts is a well - established and copyrighted world within the official Harry Potter series. Fanfiction often takes creative liberties that might not align with the original concept of Hogwarts as envisioned by J.K. Rowling. So, it's not a proper place for fanfiction in a legal and purist sense.
Well, it could be that the authors of fanfiction want to explore different aspects of the Harry Potter universe other than fighting. Maybe they're more interested in the relationships between characters or the daily life at Hogwarts.
Well, Harry Potter is a character in the original story. Fanfiction often takes the original story in all kinds of wild and different directions. Harry, being from the original, proper story, may not be able to understand these new and sometimes out - of - the - box interpretations that fanfiction presents. It's like he's from a very specific world, and fanfiction creates a whole bunch of new worlds based on that, which he has no knowledge of.