What is the purpose of school?

I am writing about what is the purpose of school?We come to school every day not just force of parent and not for time pass,but to make our foundation strong enough for college or university,school have a college level courses,sports,JROTC Automotive,AP,e.t.c.,and make our future bright.And being a student it is our duty to come school.School teach us every thing what we need,like to communicate with others,languages English,Espeneol,and French.I am new to the U.S,and I am learning English,

Teachers help us to learn with their best.School also make us a civilize to a person.if you come to school you are in right place,where you suppose to be,out their,their is a teenagers who drop out of school,don't want to come school they ruin their future by self like they dig a hole,and they put them selves.These time is for us to go school,learn something,do hard work,and that time will come when we will get good job,good home,good car,and happy life,if we study now,but if you don't than that time will also come when you hate your self,repent your self saying,why I don't study.BUt that time will late for you.Because that time is for your children to go to school.This life is only for one time,and is your what type of future you want to make decision is your.