It's a horrid commodity in an overly litigious society.The purpose of the cert is to verify your training. How is that useless?
Both are arbitrary. Both were enacted to keep things safe. Both have consequences. I can speed as long as I don't get caught. I can exceed my diving limits as long as I don't die.That's different.
We're drifted way off what John wanted to discuss, but I teach my students to know their limits and honor them. Sorry, John.