As teenagers grow up into mind matures, most teenagers start to put other people before themselves, and also figure out what they want to do in their future. While Holden was visiting her sister Phoebe, she asks him what he wants to do with his life. "I thought it was 'If a body catch a body,'" I said. "Anyway, I keep picturing all these little kids playing some game in this big field of rye and all. Thousands of little kids, and nobody's around – nobody big, I mean – except me. And I'm standing on the edge of some crazy cliff. What I have to do, I have to catch everybody if they start to go over the cliff – I mean if they're running and they don't look where they're going I have to come out from somewhere and catch them. That's all I'd do all day. I'd just be the catcher in the rye and all. I know it's crazy, but that's the only thing I'd really like to be. I know it's crazy."(Salinger 176) He wants to save children from making the same mistakes that he did. He is putting other people before himself.
National Institute of Mental Health. “The Teen Brain: Still Under Construction.” National Institute of Mental Health, 2011 https://www.nimh.nih.gov/health/publications/the-teen-brain-still-under-construction/index.shtml. Accessed 29 Jan. 2017.
Salinger, J.D. The Catcher in the Rye. Little, Brown, and Company, 1951.