Why does Atticus misread the signs that Bob Ewell might try to hurt him or his family?

Atticus underestimates Bob Ewell's capacity for violence due to his belief in the goodness of people and his tendency to see the best in everyone. He also prioritizes empathy and understanding over suspicion and fear, which blinds him to the true intentions of someone like Bob Ewell. Additionally, Atticus may have been distracted by the trial and his own sense of moral duty, causing him to overlook the warning signs.