I mean, if you read stuff like "15 year old published a novel" or "this singer wrote this very poetic and beautiful song, when they were 14."
Or when someone younger than you is better than you at something.
And you are maybe thinking "at age 14, I was lazy and talentless in comparison"
I feel like I kinda have felt that way before, which is maybe silly.
Or at least, a grown-up being jealous of some teenager sounds silly.