It is by no means news that some people just prefer to do absolutely everything on a computer by typing. Yes, ok, I get that. And I'm fine with it - never tried to "convert" any of them to something they seem to really hate that much: clicking. What I definitely don't appreciate though is the absolute lack of willingness on their part in general to even admit that other people might exist who legitimately prefer mice and GUIs and are just simply more productive with them they could ever hope to be with keyboards. It's almost like a cult thing, some sort of holy eloi / morlock division. And it's distinctly uncool.
I'm not trying to win some absurd millisecond race of actions-per-minute or argument over how hard it is to hit a particular target with a mouse cursor here. I'm saying that I can hit something mundane like "open" or "save" or "view" or "preferences" (or even just "close"!) practically blindfolded even in a piece of software I've never seen before while figuring out to type ":wq" or ":q!" to do the same in a particular program is extra work I have to do every. damn. time.
Yes, working with a single software all your life can and likely will lead to familiarity with keystrokes that do just what we call them - provide a faster shortcut over clicking; but in my experience, what I do instead is use an innumerable amount of various pieces of software briefly for whatever I need done every one of them getting used every once in a blue moon, if ever again at all. There's no way in hell I could ever hope to figure out how to do what I want done in every one of them by continuously browsing manuals and memorising endless groups of keystrokes - but I definitely CAN figure out the same, over and over again any time I need it, with a few seconds of trawling through their menus, if not by an immediate glance at a suitable button on one of their toolbars.
So thanks, but no thanks. Don't come telling me how "superior" command lines are - they aren't; what they are is "different". If they better suit what you do with your computer, if you prefer them, by all means more power to you. But asserting your way is the best way is just not gonna cut it.