So would having a spare air.
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Its unneccesary to teach buddy breathing in OW class as proper planning will make it so you never have to do it.
Buddy breathing is essentially a backup to user error. Teach them not to error and you dont need buddy breathing. If someone has to buddy breather theyve already screwed up many things, possibly including not having a buddy, not monitoring their air, not diving with a buddy with a working alternate, not maintaining their own gear, and/or not being within range of the surface to CESA. We might as well teach the, to breathe out their BC, just in case.I agree with almost everything in your post except for the quote above.
Planning, just like training will prevent or mitigate many problems, but just like you said, you can't train for every contingency. It follows that you also can't plan for every contingency.
Buddy breathing ain't rocket-science. It's one step removed from ditching and recovering your regulator. At minimum (at least in my opinion) it should be taught at depth in OW. I can see saving buddy breathing during ascent for AOW, but I could be talked into either.
Its unneccesary to teach buddy breathing in OW class as proper planning will make it so you never have to do it. Of course, they can learn it on their own if they want and its pretty obvious how it works. The time would be better spent teaching them how not to run out of air, and the better options they have were something unplanned to have happened. And of course to work on bouyancy.
In the example above we would have to beleive that its possible two divers are diving together, and that at the same time the sidemount diver loses a reg, another diver loses their air as well. Possible yes. Probable no. If you teach according to everything that might happen, it would no longer be practical to dive.
Buddy breathing is essentially a backup to user error. Teach them not to error and you dont need buddy breathing. If someone has to buddy breather theyve already screwed up many things, possibly including not having a buddy, not monitoring their air, not diving with a buddy with a working alternate, not maintaining their own gear, and/or not being within range of the surface to CESA. We might as well teach the, to breathe out their BC, just in case.
As you say, its pretty easy in theory, so leave it up to the diver to decide if they need to know it. I dont think I do, or my students do, or my buddies do.
Buddy breathing is essentially a backup to user
error.
Teach them not to error and you dont need buddy
breathing.
If someone has to buddy breather they've already
screwed up many things, possibly including not having a buddy, not
monitoring their air, not diving with a buddy with a working alternate,
not maintaining their own gear, and/or not being within range of the
surface to CESA.
We might as well teach the, to breathe out their BC, just in case.
As you say, its pretty easy in theory, so leave it up to the diver to
decide if they need to know it. I dont think I do, or my students do, or
my buddies do.
You guys are really stuck in 1970. Dont know why i bother.