What does the conversation Maniac and Grayson have at the diner reveal about Grayson? Chapter 24

As Maniac enjoys his supper, Grayson begins to question Maniac’s life with the Beales on the East End. The ensuing conversation portrays Grayson’s ignorance to cultures different from his own. Maniac takes no offense to Grayson’s questioning and assures him people on both ends live similarly.