Well, in a 'Harry Potter raised in America' fanfic, the cultural differences would play a huge role. For example, the magical community in America might be more open to new forms of magic or technology. Harry could be involved in things like American wizarding sports which are different from Quidditch. Also, the way magic is taught in American schools could be more hands - on or practical - oriented.
In the original, the story is deeply rooted in British wizarding culture. But in a 'Harry Potter raised in America' fanfic, the plot could involve different historical events and magical artifacts specific to America. For example, instead of the Philosopher's Stone, it could be some American - made magical item. Also, the role of the Ministry of Magic in America might be different, which would change the power dynamics and how Harry interacts with the magical authorities.
It could be really interesting. Maybe Harry would grow up with a different kind of magic education system in America. He might attend Ilvermorny instead of Hogwarts. His friends could be American witches and wizards with different cultural backgrounds and accents.
The plot could change a great deal. For one, the threat of Voldemort might not be as immediate or known in the same way. Harry could be dealing with different dark forces in America, like some ancient and malevolent American - based dark wizards. His journey to discover his past and his power would likely take different turns as he navigates the American wizarding world.
The story would be completely different. Harry would probably have a very different personality. Instead of the somewhat shy and uncertain Harry we know, he could be more confident and assertive like Captain America. His magical abilities might be used in a more strategic way, similar to how Steve uses his combat skills. And the wizarding world would have to deal with a Harry who has a very different upbringing and set of beliefs.
There's a chance he meets some magical creatures that can talk in the American wilderness. For example, he might encounter a Sasquatch that has a deep understanding of the ancient magic in America. They could form an unlikely friendship and the Sasquatch could help Harry in his journey to adapt to the new magical environment.
Harry could meet students from Ilvermorny. They would have different personalities and magical abilities compared to Hogwarts students. He might also meet American magical creatures' caretakers who can introduce him to creatures like the Wampus cat or the Horned Serpent. Additionally, he could come across American Aurors who have their own methods of dealing with dark wizards.
One challenge could be controlling the assassin's violent tendencies. Since the person is being groomed to be an assassin, it's likely they have a natural inclination towards violence, and Harry has to find a way to temper that while also teaching self - defense.
The magic system could be different too. In the original, there are specific British magical laws and practices. In a fanfic with Harry raised in America, they might have their own set of rules. Maybe American wizards have a more laissez - faire attitude towards magic use in some aspects. Also, the way magic is taught in American wizarding schools could be more hands - on and practical compared to Hogwarts' more traditional approach.
Harry would be a more confident and brave individual. Captain America's influence would make him less afraid of challenges. In the wizarding world, he would approach his studies and the fight against dark magic with more determination. He would also be more respectful of authority, but not blindly so. If he saw something wrong with the wizarding authorities, he would try to change it in a more diplomatic way, learned from Steve's leadership.