Outside Australia, a vast number of airline pilots would not have a clue what kind of airspace they are in, at any particular time, the fixation is an Australian "thing".
That is because ATC in Australia don't take responsibility for keeping you in it, as a few International Airlines have discovered after receiving a please explain and an ATSB investigation. Not saying that's necessarily right but that's how it is here. So you really need to be aware regardless of flight rules, what airspace you are in and when you are going to leave it.