Ponyboy Curtis is a member of the Greasers, who are members of their town's low and middle social classes, as opposed to the Socs, who are members of the upper class and enjoy its privileges. Ponyboy is the youngest of the three Curtis brothers; Darry is the oldest and Sodapop is the middle child. His status as the youngest child dictates a great deal of his personality, including his inability to understand Darry's love for him and his immaturity regarding some matters, such as respecting his well-intentioned, but sometimes misdirected, guidance.
In addition, Ponyboy is a self-described "loner" who exhibits a great deal of sensitivity and artistic tendencies. Despite the often difficult nature of his relationships with his brothers, Ponyboy loves them deeply and idolizes them to some extent. Ponyboy is highly intelligent, but often fails to think reasonably or realistically.
...sometimes I just don't use my head. It drives my brother Darry nuts when I do stuff like that, 'cause I'm supposed to be smart; I make good gradesa nd have a high IQ and everything, but I don't use my head.
Ponyboy is one of the Greasers that doesn’t like to harm people at all. Yet has tough looking hair.