[ajdlinux]

>> Airways, oropharyngeal. Most people don't know how to use those. Might be useful, though

> Most people don't know how to use any of this stuff... That's why they page for a doctor...

In Australia we teach OPAs in Advanced First Aid (not the first aid certification that most people get, but it's a component of the training that workplace first aid officers at any large business must undertake). I'm not sure whether flight attendants are required to undergo that training but it would not be unreasonable to make them.

Of course, as you say, when you can page for a doctor...