The education system is outdated, but we still use it. It was great for the industrial age, which is over now — we are living in the information age which is completely different. The education system should be different too. We learn a lot of bad habits at school that make us not know what to do when we graduate.
There is a lot of ambiguity in the “adult” world. However, all the bad habits we learn at school are contributing to our inability to manage and embrace the ambiguity. We simply get lost when something doesn't go according to the textbook. And the fact that there is no textbook in real life doesn't help. There are so many variables you can work with, but you don't know the formula. And there is no teacher to tell you the formula — you have to figure it out by yourself.
In order to survive in the modern world, schools should teach us how to deal with high amounts of variables — the ambiguity of life. They should guide us to find our own unique formulas for happy life. Just because when you go from the world of mathematics and literature into the world of jobs, personal life, entrepreneurship, internet, mental and physical health, networking and relationships — it's very hard to adapt to such a massive change.