Even outside of scripting and so forth, which I use a lot, often it's far easier and faster to just cook up a wildcard string or a regex or whatever when you're faced with a folder with eleventy bazillion files in it, only some of which you'd like to move somewhere else.

Yes, you could point-and-click on all of those for the next hour and a half plucking them all out of your file browser window. Me personally, I'd really rather not.

Other similar use cases abound.