School is also useful to learn about mistakes or shitty things people did in the past so you don't do the same in your life. Without society you would not have access to great minds of the past which might be even more useful.
Unless you know you are kind of prodigy that without learning reading or writing you could build modern washing machine from raw materials available in your area.
My point is that school is just a baseline for living in a modern society.
If you by any chance live in a first world country maybe you should be ashamed of yourself. Maybe you should watch some documentary about how barely literate people struggle in 3rd world countries and how much of their life is wasted on meeting basic needs and they did not have time to attend the school or there was no school available at all.