It starts at admissions where learning is not a rewarded activity. You should be making impact in the community, doing some performative task that isn't useful for anything except making you different to your class mates who naively read the books and do the classwork honestly.
I don't think it's the admissions office's fault. This is one of the lessons I will have to impose on my future kids once they get to high school age. Being, like, really really good at school is cool and all but if what you have is a 4.25 GPA, fifteen AP classes all with 5's, a 35 on your ACT, a school sport and chess club or whatever I'm very smart extra curricular then you're competing with the other thousand identical applications. You're likely to stand out and be interesting with literally anything else, even if it makes you look less good at school.
The world you occupy at that age makes it seem like being good at school is the formula to looking impressive meanwhile once you leave the bubble and enter adult world you realize that making an angsty punk band with your friends and playing at shitty dives sounds way more impressive than got an A in chemistry.
