What does the conversation about calpurnia reveal about the adults on pages 156-157?

The conversation about Calpurnia reveals that the adults have differing opinions on her role in the Finches' household. Aunt Alexandra believes Calpurnia should not be involved in family matters, while Atticus and Maudie defend Calpurnia's place as an integral part of their family. This conversation highlights the deep-rooted racial prejudices and class divisions present in Maycomb society.