Back in college around 1996 or so, the only Unix workstations we had were shared DEC Alpha machines. Nobody in our university knew anything about Unix. It was basically a Win95 shop. The only way to edit a file on DEC Alpha was using vi or that's what we were told. I still remember struggling for the entire exam. I think you passed if you were just able to type out the program lol. 3 years later, once I graduated and started working all of the unix guys were using vi. I had not even heard of emacs. So naturally I started using vi. 2002 some of my friends started using emacs but I was too embedded in vi to learn anything new so just didn't bother.