Vi is like an standard for moving around and editing text files. I use Vi-style commands in all my editors: Emacs, IntelliJ, and VSCode. For me, any application that supports Vi keybindings and has some sort of command palette will feel like home.
Regarding why edit files in Emacs instead of vim: I simply work on Emacs. I don't use a CLI or a file manager to navigate to my files, I already have projects set up in Emacs and can quickly open files in any such projects. Emacs also holds my note taking system. And when I'm dealing with git, nothing comes close to magit. Also, I've been using the Spacemacs framework for years, which makes it really easy to create such a customized and efficient configuration without much hassle.
Regarding why edit files in Emacs instead of vim: I simply work on Emacs. I don't use a CLI or a file manager to navigate to my files, I already have projects set up in Emacs and can quickly open files in any such projects. Emacs also holds my note taking system. And when I'm dealing with git, nothing comes close to magit. Also, I've been using the Spacemacs framework for years, which makes it really easy to create such a customized and efficient configuration without much hassle.