You're not alone, it is one of the easiest keys to hit since it lies all by its own in a corner with no danger of hitting any other keys when whacking it with whatever finger - or combination thereof - is at hand. To be honest I had to guffaw a bit at the rationalisation for using a foot pedal:
The basic concept was to use a pedal to enable switching between normal and insert modes. In Vim’s predecessor, vi, switching modes was easy, with the ESC key located neatly by the Q on the keyboard of the ADM-3A terminal. On modern keyboards, though, it’s a pain, and so a foot pedal is a desirable solution.
So let me get this straight... it is easier to blindly grope for a foot pedal somewhere under a desk than it is to hit that very visible, very close-at-hand key on the keyboard with whatever appendage happens to be closest? Of course it isn't, this is just rationalisation for making that foot pedal - as if any reason is needed to indulge in such projects other than 'because I (want to find out if I) can'.
The basic concept was to use a pedal to enable switching between normal and insert modes. In Vim’s predecessor, vi, switching modes was easy, with the ESC key located neatly by the Q on the keyboard of the ADM-3A terminal. On modern keyboards, though, it’s a pain, and so a foot pedal is a desirable solution.
So let me get this straight... it is easier to blindly grope for a foot pedal somewhere under a desk than it is to hit that very visible, very close-at-hand key on the keyboard with whatever appendage happens to be closest? Of course it isn't, this is just rationalisation for making that foot pedal - as if any reason is needed to indulge in such projects other than 'because I (want to find out if I) can'.