Ponyboy matured the most in the sense that he was able to negotiate the pain and loss of losing his friends, as well as his subsequent depression, and was able to learn from the experience, altering his perception of identity. In the beginning of the novel, Ponyboy struggled with his view of society in which the Socs seemed to have it all and the greasers had "all the rough breaks." By the end of the novel, Ponyboy has come to realize that "things are rough all over" like Cherry Valance pointed out. From talking to Cherry and even Randy, Bob's best friend, Pony learns to appreciate that the greasers and Socs both have their own set of difficulties. In the resolution of The Outsiders, Pony resolves to tell the stories of his friends and Johnny's message with the hope of making a difference for other boys.
In the end of the book Pony stopa fighting with Darry and starts to act tough but stopped by two-bit.