My parents still treat Christmas like I’m thirteen years old.

The line wryly captures a common adult experience: no matter how independent or accomplished someone becomes, family rituals can freeze them in an earlier role. By saying his parents “still treat Christmas” as if he were thirteen, Shinoda points to how holidays amplify nostalgia and parental caretaking—gift-giving, traditions, and expectations that assume childhood. The humor carries a mild ambivalence: affection for the warmth of being looked after, alongside the frustration of not being fully seen as an adult. It also suggests how identity is relational—at home, one’s public persona can be irrelevant compared with the family’s long memory.