I decided to try it today. My left foot couldn’t even find the pedal - granted that this pedal design was done on the assumption of right foot only - it is small (never noticed before) and not terribly accessible to the left foot. Furthermore, given my steering wheel and seat position trying to use my left foot has the top of my thigh brushing if not bumping the steering wheel. I just think that the whole idea is loopy.
But I went 20 years doing nothing but a clutch and had no left foot for the brake. So I suppose right foot is just natural to me. Asking my left to do it feels sort of like eating with the wrong hand.