Throughout the experience of spending a couple days in New York by himself, holden has found what really matters to him, which is his family. At first, he was kind of avoiding his parents. However, he realized that he cares about his family, when he felt like he was going to die. At the end, he decided to go home, even though it was not Wednesday yet. He wanted to see his family. In order to show this progress more clearly, I decided to highlight Holden's emotion and affection toward Phoebe and other family members by adding extra scene for chapter 25, after they leave the park.
What do you think? If you have any opinions just please leave them as comments.