How does ponyboys behavior change after the hearing and what causes the change?

After the hearing in "The Outsiders", Ponyboy starts to appreciate the importance of family and realizes that he needs to find a better balance between his schoolwork and his relationship with his brothers. The change is influenced by the realization that things could have turned out much worse for him and his brothers, and he becomes more aware of the risk-taking behavior that led to the events of the story.