Divers don't need 'experience' before progressing to AOW....they need ABILITY.
Ability is supposed to arise from effective training. If a diver doesn't have sufficient ability to benefit from AOW directly after OW qualification, then their training didn't meet its goals.
Citing a need to 'gain experience' is the scam-instructor's ultimate excuse. Just blame inability on the student....
I will take issue with those statements ... pretty much all of them.
One does not "master" anything in OW class ... not even a well-taught, comprehensive OW class. No more than someone taking basic piano lessons masters playing the piano after just a handful of hours of instruction and about two hours of practice. The expectation is just unrealistic, and it's neither the fault of the instructor/agency nor the student. It's a false expectation of what to expect to get from the class. OW instruction doesn't teach you ability ... it teaches you how to gain it without hurting yourself. The learning comes ... as it does with the piano ... by spending time practicing. We humans were never designed to be underwater. We have both physical and mental/emotional limitations that need to be overcome. The good news is that we are adaptable, and therefore overcoming those limitations is possible. The bad news is that it takes time, effort, and practice. Some pick it up more quickly than others ... but we all need some amount of practice to do so.
OW training can completely meet its goals and still not prepare a student for taking a class where ... after a single dive ... they are suddenly told they're good to go deep. Were it not for that tendency of so many divers to chase depth, I would be less hesitant to accept students directly from OW to AOW ... but that remains the primary reason why many (perhaps the majority) of divers want to take AOW. And it in no way does anything more than introduce them to what it feels like to be there.
Ask yourself how many divers you've ever heard say they didn't get anything out of their AOW class. Then contemplate why. In some cases it's because the class was poorly taught, but in most cases I believe it's because the student wasn't yet ready to take it. They were still struggling with the "mastery" of their basic skills that they were told they'd achieved during OW. That's a misleading concept ... no one "masters" anything from trying it a couple times in a controlled environment. Repetition, contextual learning, and adaptation are what leads to mastery. And if you're struggling to control your buoyancy ... if you're waving your hands around trying to maintain position ... if you're having to constantly kick while holding yourself in a more-or-less vertical position in order to avoid touching the bottom ... you haven't "mastered" buoyancy, and have no business being at 100 feet no matter how benign the conditions.
And that isn't to "blame" anyone for the lack of ability ... just like any other skill you've ever learned in your lifetime, it boils down to practice. And putting yourself into a different situation without adequate practice is a really good way to stunt your growth as a diver, because you'll be focusing on building on skills you haven't yet developed to a point where they can support what you need to learn.
It's never a smart idea to start building structures on top of an incomplete foundation ...
... Bob (Grateful Diver)