The Coexistence of Good and Evil
The novel approaches this question by dramatizing Scout and Jem’s transition from a perspective of childhood innocence, in which they assume that people are good because they have never seen evil, to a more adult perspective, in which they have confronted evil and must incorporate it into their understanding of the world, people such as Tom Robinson and Boo Radley are not prepared for the evil that they encounter, and, as a result, they are destroyed. Even Jem is victimized to an extent by his discovery of the evil of racism during and after the trial.