How is Scout's search for identity challenging?

Scout is a Tom-boy. She is also a free spirit who, unlike the other kids in Maycomb, has a sense of moral justice. She does not dress or act according to her prescribed gender-role. Being a child she tends to see things in absolutes (black and white) but her father (Atticus) gently guides her to see the greater spectrum of the human condition. Unlike the other kids, Scout is smart in school. She loves to read and has an innate curiosity of things. I think, in the end, she is simply unique (like her father) and has to wait a little while to find out who she is in a town that just isn't as dynamic and progressive as she is.