High school is so bizarre...
-You're suppose to learn, but they don't teach you anything important. You don't learn about human nature, dealing with people, managing your time, managing opportunity, balancing a checkbook, handling credit card debt. Everything is theory and memorization. Has memorization ever gotten you a job promotion? It's a joke.
-It doesn't mimic the real world. In the real world, you have to come to work on time, there are dress codes, there are codes of conduct.
If you guys want the secret to happiness, don't focus on stuff that doesn't matter. Do your own thing. No one has ever developed confidence by worrying about what other people are doing. Blaze your own trail.