Why does the CLI scare people?

Just curious about this. I mean at one point it was the only way to interact with computers and it was written for people to be able to figure out how to use it. Just because a new graphical way came about to do things doesn't invalidate the hard work done on the cli interfaces or make it more difficult all of a sudden. A little basic understanding is all that's really needed for it to be useful like if I want to delete all files of a certain filetype from my downloads folder it's so much quicker to type rm *.zip or something than to sort everything out. Why do we insist on making everything gui when there is legit use cases where typing a few commands saves alot of time?