Accelerator pedals are sometimes low set, or of the 'organ pedal ' type which allows you to steady your foot with the heel on the floor for more precise throttle control. But AFAIK brake pedals are always of the suspended type. Because by resting your heel on the floor you would only be pressing the brake pedal by flexing your ankle, which limits the range of movement and pressure you can exert. You should lift your foot from the floor and press down with the full movement of your leg. OK some people with extra large feet , high heel shoes etc might habitually heel and toe in this way,suffient for power brakes in normal circumstances. But maybe not an emergency stop. I would not recommend trying to replicate it.
The honda brake pedal is at a standard height that should suit all drivers. (except those who might need the car modified by a mobility specialist). The following site gives the specifications and how to adjust the pedal height slightly. I wouldnt recommend trying to change the pedal height in this way just to suit the driver. If you find your pedal height is considerably out of specification I would consult a mechanic, as there may be other reasons.
https://www.hondafitjazz.com/manual/a00/html/00/saa2e00d14300014801mbat10.htmlI mean no insult but I also suspect its driver technique. You should use the right foot for both, primarily resting your foot over the throttle , and when you need to brake, lift your leg and immediately move your foot onto the brake pedal. There should be no significant time with your foot hovering in mid air. Any length of time holding the car on the brakes the foot is supported by the brake pedal.
Again no offence but some drivers get into the bad habit of hovering too much around the brakes, and sometimes lightly applying them when its not really necessary. Advanced driving instructors call this 'reassurance braking'.I have tried google search on 'reassurance braking', but got no hits, but you may find a reference to it in some advanced driving tutorials. Its not always easy to know you are doing it and may need positive confidence to break the habit.