School can teach you a lot of basics but you, the school and everyone else has no idea what your are gonna do. Before college everything is the basics of most core subjects used all the time, and if it's not basics like that problem is about logic and problem solving. In college you will pick a career and get started with useful information that you will need
TL:DR whoever designed our school system (tons of ppl) are probably smarter then the op
Since middle school people have whined "but we'll never use this in real life!" Um, maybe YOU won't. Have fun working at your high school job for the rest of your life. Let those of us with potential learn the absolute basics of what we need to succeed.
TL:DR whoever designed our school system (tons of ppl) are probably smarter then the op