It isn't that so much as it is a lack of effort. When I help a Mac user, "I don't know" is the operative phrase. Both types of machines can have issues, but I find that PC users will at least try before picking up the phone. When I ask a Mac user to verify something for me, since I don't use a Mac on a regular basis, the response is "where is that?" In their defense, I would say that Apple hides many things from the user that would be of help; I guess to protect them from themselves. Just an observation from a weary support guy.
I was a bit annoyed at this at first. For example you have to drop into terminal (UNIX command line) to fine-tune the power saver settings. OTOH, I understand it's the user interface concept of progressive disclosure, not hitting the user with a wall of options and capabilities all at once. Exactly where the line is drawn will appear to some people as too simplistic, and possibly others as still to complex.
I'm still trying to find where that darned 'any key' is.
Just curious. What kinds of things are you asking Mac users to verify that they don't know where they are?