Holden's Maturity

In The Catcher in the Rye by J.D. Salinger, Holden Caulfield is very immature. He tells us that he looks much older than he really is, yet when he tries to buy a Scotch and Soda at the Lavender Room, the waiter does not let him and he only gets a Coke (91). When he is dancing with Marty, he plays a childish joke on her by saying that he just saw Gary Cooper (although at least he shows a little maturity when he says he felt bad about doing it) (96). Holden Caulfield in The Catcher in the Rye is an immature person but at least he does admit his immaturity at some points in the story.