As a side-note, I do a 'checklist of myself before I splash (I've jumped in with air off, and later with no fins) or leave the dive boat (left a pair of fins once). I'm solo certified; I don't expect someone else to 'go over' me.
I think the 'personal responsibility' thing, in and of itself, can be a bit of a red herring in this discussion. Let's say for sake of argument every non-medical diving death were shown to be the moral fault of the diver, and no one else, but you had a cheap, easy, widely deployable practice that would save all such people going forward.
How many people would say 'Don't do it, Darwin needs fresh meat?' Hopefully nobody. So whether & to what extent it's the diver's fault, in and of itself, isn't what's driving this.
The problem in our liability-driven society is, a death that shouldn't have happened has to be somebody's fault (I don't believe that!), and if not the diver's, then somebody else's, which means that somebody else is legally liable, and...
Here's a real world example. On Scuba Board, there are recurring topics of debate that never see closure. One is whether dive boats should require AOW cert. instead of accepting OW cert., with diver affirming experience and capability for the divers on offer, when the boat dives tend to run over 60 feet deep, for instance. I've read this is a more common thing in the U.S. (where liability risk drives a lot of corporate policy) as opposed to the Caribbean. So a diver with OW and nitro cert.s + over 500 dives with extensive deep diving experience may post on Scuba Board indignantly asking why he needs to take an AOW course to teach him nothing (new). And some of us tell him so he doesn't risk getting denied some dives.
That sort of thing is why I keep pushing for what you want done 'real world,' how sure we are that whatever the current death rate is is excessive (compared to similar sports), what an acceptable death rate would be, and whether you're going to keep pushing and tweaking into perpetuity no matter how low it gets (non-zero), in which case I'm concerned about the potential for OSHA-fication.
It's not the problem-solving approach to safety improvement that triggers objections. It's how it'd be carried out in the real world. If you want to encourage (not require) dive boats to post checklist placards in dive areas as reminders, fine. If you want to mandate AOW for any dive over 60 feet, Deep Diver for any dive over 100 feet, drift diver cert. for drift diving...well, I doubt you do, but sometimes once you open Pandora's box these things take on a life of their own.
I like the way you think but I'm scared of what people (esp. lawyers) will do with it.
Richard.