> Just drag/drop a PDF to a printer spool window, and it will print;
this is just the most obtuse way of doing things.
> usually you just have to drag it to the Applications folder; to uninstall it, simply drag it to the trash;
So does this, and unreliable as you noted - i.e. usually. But, ugggh... dragging things to other things to do things though?
There's a reason why certain large classes of disabled users are on Windows. Stephen Hawking used Windows.
Aside from the disabled, the mechanics of Windows have always been better, no matter how bad they actually were. That last bit is my opinion, but it is true that many, many more disabled users are on Windows. If they can figure it out, couldn't your roommate? I'm joking of course, some people just seem to have a completely different way of thinking about things and certainly it is a fact that at least some portion of the population prefers the way macOS does things just like there are some people who can only use their chin to move a mouse.