LibraryTechtonics has this brief post regarding right-clicking in libraries. I found this observation interesting:
I had always thought of the right-click menu as a tool for intermediate to power users, with most other users better acquainted with the Edit menu. However, I’m noticing that the majority of our users, even at the basic computer knowledge level, are asking how to perform specific tasks because the right-click menu isn’t available, not knowing that keyboard shortcuts or the Edit menu are an option.
I would never have thought of right-clicks as “intermediate to power” usage, unless you’re a user who started on the Mac and moved to Windows. Right-clicks are powerful precisely because your set of choices appears where you are and is (in most cases) contextually appropriate for where you are.
The Edit menu is remote. As for keyboard shortcuts, they fall into the “once you’ve internalized them, they’re great” category, and are to some extent a command-line remnant.
Right-click menus give you a set of choices; keyboard shortcuts work only when you remember what they are (and assume they’ll work–for example, Ctrl-C/Ctrl-V only copy and paste if those functions are enabled in the program and document you’re working with.)
It would seem to me that learning one fairly obvious trick–“try right-clicking and see what’s available” is a great way for a beginner to make progress, where “learn which menu has your function, or learn what keyboard shortcut might do what you want” is a learning curve.
As always, your mileage may vary.