Android is open source so it can be customized. If a country decides to use Android I'm pretty sure they can spend a budget to modify and vet the source code being used by their device rather than re-inventing the wheel.
Yeah good point. Navigation can be unintuitive too. Like, how do you quit? Is it q? Ctrl+C? What even is the weird symbol before C? Those are some of the hurdles that must be overcome when coming to CLI and not necessarily easy to remember. Sure you can do it in 1 hour, but say tomorrow would you remember it again? What if the system is running smoothly for 1 month and you never opened the terminal again after those 1 hour?
And how does the user suppose to know to type man? He may remember the instructions to check man, but he may not. For us, those 3 letter words are very familiar, but others need time to remember them. On GUI, this is no problem because as I stated they will bound to find it by exploring. Basically point and click adventure games I guess rather than the guessing game. And users will choose the path they most familiar first.
I think technically, the source should be the native format of whatever image manipulation program that you use. For vector graphics, there is svg format but the native editor is still preferable. Otherwise, whoever gets the end copy cannot easily modify or reproduce it, only copy it. But it of course depends on the definition of "easy" and a lot of other factors. Licensing is hard and it is because I am not a lawyer.
Yeah, you do make a good point about misattributing the system being incapable to their lack of research. But people don't like it when they are wrong/corrected most of the time. It also applies everywhere, computers just so happen to be the most prominent. The point is that people will complain about anything anywhere.
You bring up an example of installing Debian and needing non-free firmware for their wireless card. Take a step back and think how many people are even aware about the term non-free? It is quite a ubiquitous english word with different meanings in the open source community. People reading it will assume they know what it means.
The scenario when someone that is fed up with windows and decides to install debian will see the word "non-free" and attribute it to "you must pay" at glance. If the resource they used to install it mentions and clarify what non-free means, good. Otherwise, it can be a boogeyman for them and make them re-think their decision to switch.
I think not everyone needs to know how their device works. Specialization is what advances us as humans after all. If they wanted to know, good for them, and if they don't also good for them. If I were using a car, I don't need to know how the engine convert a chemical energy, transfer power, and generate thrust
Edit just to give an example, an office worker may only need to use a word processor and their OS be up to date. If the user can just click the GUI to update the OS rather than typing the command for whatever package manager the OS uses, it is good enough for him. Sysadmin can give them the instruction once and done.
If the user forgot the instruction, they can explore it on their own with GUI without internet since no matter how deep a GUI config is, then there must be a way to get there (assuming the UI designer isn't shit). Contrast that with CLI where if you forgot or don't know any command there is little help or indicator of what's available and what can be done without external help.
You may be out of touch with people that are used to GUI. For example, during the first installation of linux distro after the user is landed on their DE, as far as I know, no distro ever curates the terminal to them. Like "this is the menu", "this is the terminal emulator", and even after the user managed to open the terminal, it is not obvious what to do next as there is only text prompt. Remember, users using GUI usually encounter text prompts with some hint (username, comment, email). Meanwhile the terminal has nothing. Suddenly you see the user you are logged in as and a blinking cursor. After that, how do you know what apps are installed? What commands can you call? Typing help doesn't always help on every distro. Again, remember, users using GUI will see what apps are installed usually using a menu of some sort. There is a lot of friction coming from GUI if you have never encountered CLI before. Heck, I bet some people have never installed an application outside from an app store or their commissioned device. Even a file explorer concept is foreign to some.
You know not everyone likes to read a wall of text. Some people prefer watching a video than reading an article. So some people just like to use GUI than CLI, and that's fine.
Reading it right to left changes the meme