I have found this to be true, myself. For example, some of Swift's satire eluded me in high school. My wife told me she rediscovered Lewis Carroll.
The books must have changed, huh?
Swift’s satire takes some background to fully appreciate — background that comes with age and/or experience.
Salinger’s works don’t require that kind of background. You either like the story and get an emotional massage from angst or you don’t.