i think one thing young people do a lot is concern themselves with details and getting them right, because you have to learn the rules before you can learn how to break them. so they're afraid of standing out and they react negatively to anyone their own age who does.

as you mature, the details become less important. or should become less important anyway. some people never get over that stage and remain permanently obsessed with them, and having everything in order becomes their idea of maturity.