You guys always wheel out ****** divers as an argument for gue. I see them all the time. I've seen by far worse in France than in Florida. I've seen people in french cave country which tanks ratched strapped to a 30 year old bcd, swimming upright like a seahorse kicking, I've seen a dude bring a tank for welding gas into cave... only because some people suck or do wacky stuff doesn't mean everybody has to go to one agency to learn easy stuff. It also doesn't mean that someone can't try doubles or practice closing their valve before they have done a class (which was the topic).All you have to do is actually go diving and watch what goes on around you.
People literally cannot do these things. To include some cave and tech divers. It’s not really debatable. It’s objectively true.
You keep bringing stuff up I never said or disputed.