Comment by pavon

If you are frequently having to use other computers, a heavily customized setup has much more friction either to setup the machine like you want, or remember how to do things without all the customization (if you can't customize or it isn't worth the time).

When I graduated college I used Dvorak and Emacs on Linux. Six months of having to use shared Windows lab computers extensively beat me down to surrender all of those points - my brain just couldn't handle switching, so I conformed my desktop to match. Then later I switched jobs to a group that was all Unix, but of many varieties most of which only had vi, not Emacs. And so I learned vi. Sometimes minimizing friction means going with the flow.