You seem to believe that people only use the terminal if they HAVE to. I doubt anybody these days HAS to type any amount of code in the terminal, but choose to anyway. Like probably anyone else I have access to modern tools and infrastructure, but I choose to do work in the terminal because I’m more productive there. I use (neo)vim because I like it more than any other text editor I’ve used, and have no problem writing code and debugging in the terminal.