I agree—the problem is that it does not logically follow and is contradictory, but he is right that knowledge of the CLI makes things a lot easier. However, I'm

I agree—the problem is that it does not logically follow and is contradictory, but he is right that knowledge of the CLI makes things a lot easier. However, I'm with you in that I don't think there should be any pressure not to try it anyway. I have a custom-built desktop machine that I can install anything I want on, so if something breaks or falls over, I can simply reinstall another OS (while getting real work done on my laptop).