Genesis:
That should be the way diving is done.
I'm convinced of it, after what I've seen.
Across the board.
Nobody stops me from going down a black diamond ski hill. Even if doing so might be suicidal at my skiing skill level.
Exactly. I'm all for that, but it's not THE way. It's one of two sensible ways.
A credential system is fine, provided that the credentials are meaningful. If you are going to have some authority certifying that someone is competent to dive, so a charter operator who doesn't want people dying off his boat has a means of avoiding it, then see to it that the certification is not a lie. That means seeing to it that the most marginal passing student is ready to take responsibility for himself in the water without a babysitter. Remember what they call the one who graduates last in the class from med school - doctor. That means your WORST passing student can take care of himself in the water. (For anyone having PC hissy fits, in this context himself can just as easily be herself. I'm a lazy typist.)
This brings up something else though - what makes the certification meaningful. Genesis mentioned not freaking out when things go awry.
That's a big part of it. Samsp's satisfaction with his training stems partially from the fact that he hasn't been tested in this regard. Diving is different from skiing in that it doesn't taka a double black diamond to kill people. When someone panics, they revert to instinct, which is to hold their breath and go for the surface, and which can kill them in a swimming pool. When a certification of readiness is issued, it's more than a mere matter of knowledge and skills. It says the holder can be relied upon to handle possible underwater problems in a calm and intelligent manner, so a meaningful certification process has to also ascertain the candidate's ability in this respect. It should weed out the intellectual and emotional invalids that make up the majority of our society. If you're not willing to do that, then you have no business issuing credentials of readiness. They don't certify people as physicians who faint at the sight of blood, no matter how much knowledge and skill they have.
The encounter I mentioned after diving the Eagle is a classic example. By now most of you have realized I don't softpedal my position. In talking to this kid about his diving to 106 fsw with no idea of his time, it came down to me looking him in the eye, and asking him whether he didn't see a problem with that. At this point in the conversation, the context, and my wording and tone would have led the average 5 year old to start to question their nonchalance with the situation, but his response indicated he still didn't suspect he might have done something amiss. This kid was an idiot - in a battle of wits, he'd lose to a turnip. Given his possession of a C-card, clearly, the process isn't screening. There are people diving who shouldn't be allowed to walk the streets without medical supervision.
Of course, if we eliminate the certification process, it doesn't bar idiots and nervous wrecks from diving, but it also doesn't hand them a credential that
supports any fantasies they have of competence, or misrepresents those delusions as fact to third parties. Rjens, if you want to sling on some tanks and hit the Doria, let it be on your own poor judgement and not because some agency that just wanted your money told you you were ready without checking first, and vouched to the boat captain that you weren't going to force him to spend several days talking to investigators.
Credentials are the currency of competence in any society too large to check everyone out firsthand. Like monetary currency, inflation can destroy their value.