Having a school education is important but it only gives you a start in life. A big part of what determines if you are successful is you as a person, your personality, how commanding you are & how you come across in corporate situations.
It’s important to have a certain level of education but an A in something like English isn’t going to get you a job over people who interview better than you.
The essence of education is not to have good grades. There are people who pay for such. Education brings enlightenment and information. And educated people are known for making informed decision, and this is based upon their understanding of laws.
However, the world we live in now is dependent on the education we receive in schools, because you cannot survive in this world through white-collar jobs without a certificate, which we can only obtain through education and knowledge gained in school.
Although you are correct that we only learn laws in school and that we can be educated without going to school, let us follow the rules and do what the government wants.