@bw maybe “people” is intended to mean people who know file systems and such, but not all adults, even young and bright ones, necessarily know this. I also remember struggling to understand WHERE to do the listed instructions a lot when I was learning these basics, even in “beginner” tutorials.
Recent experience: New programmers can learn to write C code with GCC in an afternoon, but they still need help getting to the part where writing `gcc hello.c` does what they want.
@bw Another thing: Illustrations, even tiny ones that can be understood at a glance, help a lot. Example: A simple “this is the file extension” arrow pointing to the file extension of a file name.
Going without illustrations requires a lot of confidence that you understand what the author is writing about, and faith that it will work. The less “faith” and more “proof” (e.g. visuals) there is, the easier it is to follow along. Seeing is believing etc.