His view of family changes. Since the Dursleys have been so cruel and then abandoned him, he'll start to redefine what family means. He might look for a family among his friends or those who share his magical abilities, rather than a traditional family structure.
He becomes more self - reliant. Harry has to learn to take care of himself without depending on the Dursleys' meager provisions. He'll figure out how to get food, shelter, and clothing on his own, which will make him tougher.
He can turn into a more determined version of himself. Once pissed off, Harry may set his mind on finding the truth or getting revenge. His stubborn streak gets stronger. He won't be easily dissuaded from his goals. This can lead him to take risks that he wouldn't normally take. In some fanfiction, this new - found determination can be both a good and a bad thing. Good in that it helps him solve problems, but bad in that it can put him in more dangerous situations.
In such fanfiction, the story might change the original relationship by having the Dursleys show kindness early on. For example, they could provide Harry with a warm welcome when he first arrives at their home, instead of making him live in the cupboard. This alteration can lead to a different emotional growth for Harry, as he doesn't have to endure the same level of neglect and abuse. It also changes the dynamic of the entire wizarding world story, as Harry's home life is a big part of his character development.
Draco may become more empathetic. Harry's clothes could serve as a reminder of Harry's experiences and struggles. This could make Draco more understanding towards Harry and others in similar situations. For example, if Harry has faced a lot of prejudice in his life and Draco is now wearing his clothes, Draco might start to think about how he has contributed to that prejudice and want to change.
He could develop a stronger sense of self - preservation. Since he is in an environment where he is not fully accepted, he has to learn to protect himself, both physically from Dudley's bullying and emotionally from the Dursleys' neglect. So he might become more guarded and less trusting at first.
Physically, of course, there are the obvious changes. But more importantly, her personality might become more nurturing. For example, she could be more empathetic towards others' feelings, which might change how she interacts with Neville or other students who were bullied. Also, she might be more in tune with her emotions and not suppress them as much as male - Harry did.
He becomes more detached from the petty squabbles of the wizarding world. His concerns shift from things like Voldemort and Hogwarts politics to the well - being of the entire universe.
The abuse by the Dursleys in these fanfictions is a major factor in Harry's character development. It initially makes him angry and withdrawn. However, as he grows, this anger becomes a fuel for his courage. He becomes more empathetic towards others who have suffered because of his own experiences. Also, his time with the Dursleys makes him value the friendships he forms at Hogwarts even more, as they are a contrast to the loveless environment at the Dursleys'. Overall, the abuse shapes him into a complex and strong - willed character.
Their attitude could change from disdain to a begrudging respect. They might realize they can't push Harry around as easily anymore. They could start to be more cautious in how they treat him.
As a girl, Harry's character would likely become more attuned to the subtleties of communication. In the original story, Harry was straightforward and to - the - point. But as a girl, she might use more nuanced language and body language to convey her thoughts and feelings. Her sense of style could also become an important part of her character. Maybe she starts wearing different robes or accessories that reflect her new identity. This could also influence how she is perceived by others and how she perceives herself. She might also be more likely to rely on her female friends for support rather than always trying to handle things on her own as she did before.
He often becomes more self - reflective. When bound, he has to face situations that he can't easily escape from. This makes him look at his own actions and beliefs more closely. For instance, if he's bound to help the Gryffindors in a task, he starts to question his Slytherin - Gryffindor rivalry.