Maybe he got injured during a dangerous adventure. For example, he could have fallen from a great height while chasing a dark wizard and broken his legs.
It could be the result of a curse. In the fanfic world, there are many powerful and evil curses. One of them might have been cast on Harry, affecting his ability to walk. Say, a curse that slowly drains his physical strength and mobility.
Another possibility is that he's suffering from a magical illness. There could be some rare magical diseases in the fanfic's universe that target the nervous system or the muscles, thus preventing Harry from walking.
One possible reason could be that he was injured during a battle with dark wizards. Maybe he was hit by a powerful curse that affected his legs. Another reason might be related to some kind of potion gone wrong. For example, if he accidentally drank a potion that had negative side effects on his motor functions.
Well, his friends might rally around him. Hermione would probably start researching every possible spell or potion to help him. Ron, on the other hand, would be there to offer moral support and practical help like getting Harry around. For instance, he could use a levitation charm to move Harry from place to place.
One possible reason could be that the magic used against him is of a very dark and ancient nature that defies the normal healing spells. For example, if it's a curse created by a long - forgotten dark wizard with unique and unbreakable properties.
In the 'Harry Potter can't walk fanfiction' when Harry loses his ability to walk, the story could develop in a very emotional way. His friends and allies would be determined to find a way to restore his ability to walk. Meanwhile, Harry himself might start to see the wizarding world from a different perspective. He may notice things that he overlooked before when he was able - bodied. He could also become a symbol of perseverance for other students who are facing difficulties. The story could also involve Harry learning to use magic in new ways to compensate for his lack of mobility, such as using telekinesis spells more effectively.
It could be that he failed at something important like a difficult task or a competition within the story of the fanfic. This would surely make him feel down.
Fanfiction can sometimes deviate a lot from the original story. It might be that the official creators or those in charge of the Harry Potter brand don't want the characters to be misrepresented in fan - made stories, so they restrict access to it for Harry or anyone in the context of that world. Another aspect is that some fanfiction may have a negative or unethical undertone, and to protect the integrity of the original story, access is prohibited.
In the fanfiction's world - building, there could be a cultural or religious group in the wizarding community that Harry has become a part of, and they have a strict no - meat diet. This newfound identity or connection has led to him not being able to eat meat.
Well, it could be that she is used to a laid - back lifestyle at home. In some families, the home environment is very comfortable and relaxed. Mom might feel that there's no need to be formally dressed all the time. Wearing just a T - shirt makes her feel free and unrestricted. It also allows her to move around more easily when doing household chores or simply relaxing on the couch.
Another possible reason is that Harry is protective of their story. Fanfiction can be quite wild with different interpretations, and he might not like how some fanfictions try to rewrite their relationship. He has a deep - seated understanding of his bond with Hermione, and fanfiction that messes with that can be hard for him to tolerate. He might think that the real story is already great and doesn't need these made - up alterations.
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.