Computer geeks, I need your help!

[progmatist]

For the old commands, sure, but if you right click in a file manager window, you get New Folder or Create Folder, depending on which brand of file manager you're using.

And depending on what desktop GUI one uses.

Nah, as with a lot of things, they just followed along with what Apple was pushing.

I've never been that familiar with Mac OS, let alone its conventions.