In To Kill a Mockingbird, what does Scout learn from Walter's visit in chapter 3?

By eating lunch/supper with Walter, Scout learns about societal differences and acceptance of others. Walter represents the lower class, poverty stricken people of Maycomb. As Aunt Alexandra would have Scout believe, the Cunnigham's are beneath the Finch's; however, through Atticus and Cal, Scout learns that all people are equal regardless of their financial status.