I'll tell you what everyone needs, ex: current economy. Everyone needs a basic personal finances course in high school and basic microeconomics. They also need basic law principles.
Young people are being asked to borrow tens of thousands of dollars for a job they might see in 4 years after getting a piece of paper. They will also need car, clothing, housing, and may be looking to marry. $$$ They need the basics on how it works so they can set themselves up in a good way and know why they get where they get.
Every job field now (in the US at least) requires tiptoeing around the complex legal system so someone doesn't sue you and put your company out of business. It's a huge burden on small businesses and therefore the job market as well. Young people are more valuable to themselves and their employers if they understand the basics of how the legal system works. It would be good for all of them to understand more law regarding roadways, tickets, and how to handle them. Or the basics of tort so an employee understands that they put a lot of people, families, and jobs at legal risk by cutting corners, and how companies can be liable for stupid things even if they technically didn't do anything wrong. For example, most people know about the McDonald's case where the woman sued over the hot coffee. McDonald's wasn't required to change their coffee, only the sign on the cup. FUCKING STUPID!