What indication is there that Holden may be starting to question his own generalizations?

Holden Caulfield begins to show signs of questioning his generalizations when he reflects on his interactions with others, particularly when he acknowledges the complexity of people's personalities. For instance, he has moments of connection with characters like Sally Hayes and even feels empathy for his younger sister, Phoebe. These experiences reveal that he is recognizing the nuances in people, challenging his previously held belief that most adults are "phony." This shift suggests that he may be starting to see beyond his black-and-white view of the world.