For what it's worth, I use Vim fairly regularly and have always left the escape key alone. (The "butterfly keyboard" Mac tempts to me remap it, but that is not, in the final analysis, Vim's fault.) I do, however, tend to remap caps lock to control, because I think it's a better place for it and it's not exactly a high effort thing to do the remapping -- it's built right into the Mac's system preferences.

As other people have pointed out, most of us aren't regularly using computers that aren't ours (or at least "ours," in the case of work machines permanently assigned to us), and I suspect nearly everyone who reads this web site has changed more than one thing on their computer that deviates from a fresh out-of-the-box default. :)

The default is reaching to the top left corner of the keyboard. I know the default and it's terrible if someone uses vim. In macOS it's trivial to remap the caps lock key to ESC system wide through the built in preferences. So while it's not that way out the box, it's certainly in the realm of default configurations any user might make on their machine.

Who is this mythical person jumping between tons of computers? Who is dependent? The few times you're on a different computer you just deal and fallback to the mean.

I do it because it makes my life easier on the system I use 99% of the time.