Anyone can learn to use an office suite on their own in very little time
Okay, should I say the same about a terminal then? I took a single-semester Linux course and had the terminal down pat. Meanwhile, I grew up learning how to use an office suite day in and day out in K–12 and still find new ways to improve my workflow in one.
so there’s no reason to teach it
Besides the fact that it's a cornerstore of modern society that any white-collar professional will routinely have to work with, sure. (If you want to pull the "we shouldn't be turning our kids into workers" card for why teaching them basic job skills is bad, things like word processing and spreadsheets are/can be very useful outside of industry too.)
Being able to use the command line is a valuable skill that makes you a way better computer user no matter what you’re doing
Okay, like... kind of? It gives you a better mindset, but in terms of a specific application, unless you're in a niche part of industry or have niche interests, you will never in your life need to touch the terminal at this point. You will be just fine. Even as a power user, there are few problems normal users would face where I look at the terminal and see a shortcut to something that would be tedious in the GUI – and fuck knows most people use their desktop OS less than I do if they even have one anymore.
and it’s one that a lot of people are missing these days.
Because as noted, no major OS except desktop Linux makes you interact with the terminal in any meaningful way – and even desktop Linux is changing that because designers understand that, while the terminal is a godsend for power users, everyday users have no compelling reason to deal with it.
I don’t think you can really say you know how to use a computer if you can only use it in the very specific ways someone happens to have made a gui for
This is elitist bullshit that isn't reflected in the real world. It's not 1992 anymore. If people can efficiently complete the workflows they need via a GUI and never touch the terminal, then good for them; they know how to use a computer. This comment is so profoundly out-of-touch with how most actual humans live their lives that I feel like I've tripped and fallen into another reality.