Guiding users away from CD and ls
terminal.click
terminal.click
The converse is also true: when I'm using a GUI, I very much want to minimize the use of the keyboard.
The two devices are physically mutually exclusive: I can't use them at the same time, so they represent two natural and distinct "modes" of input.
I'm a two-fisted user (when a separate mouse is available) - I want to use the mouse for what "does not make sense" to use the keyboard for ... and vice-versa