What is the use of going to school?

No, I know from this question that you are still young. I can definitely tell you that going to school is useless. If you are a normal person (that is, an illegitimate scientist, mathematician, professor or doctor), all you want is a diploma, and a diploma is an opportunity to find a job. A higher diploma is an opportunity, but whether you can seize the opportunity is another matter. Mathematics is not a mathematician or a teacher. You don't need it. English, no, what you can do now is to learn everything, get a high diploma, and then enter the society, forget everything you have learned, use your diploma to give yourself a chance to find a job, increase your experience, and get a good job and a good salary with your high experience. You can ask your parents, if they graduate from college, what is the relationship between what they are doing now and what they have learned, what they have really learned in school, and what they will use in this world in the future. Well, it would be nice to have 10% in the whole country.