In chapter 23, Aunt Alexandra tells Scout that she cannot invite Walter Jr. over to play because he is "trash." Fortunately, Jem intervenes by taking Scout to his room. In Jem's room, Scout tells Jem that she disagrees with her aunt's assessment of Walter Jr. and believes that Walter Jr. is not trash like the Ewells. Jem then says he has everything figured out and explains Maycomb's caste system to Scout by saying,
There’s four kinds of folks in the world. There’s the ordinary kind like us and the neighbors, there’s the kind like the Cunninghams out in the woods, the kind like the Ewells down at the dump, and the Negroes (Lee, 230).
The two siblings then begin discussing what makes people different. Jem believes that is has something to do with how long one's family has been "readin‘ and writin’." Scout displays her maturity and perspective by noting that the only thing separating people are their opportunities in life. Scout then tells Jem,
Nothin’s wrong with him. Naw, Jem, I think there’s just one kind of folks. Folks (Lee, 231).
Scout's egalitarian view contrasts with her aunt's prejudiced, judgmental perspective of society. While Alexandra believes that families are considered "fine folks" because of their social status, extensive family history, and the length of time they have owned the same property, Scout believes all people are inherently equal.