some of you are calling others stupid who might have better driving records than you. it reminds me of a quote: "a fool judges a book by its cover... just as fools judge persons by their appearance."
https://www.reddit.com/r/NoStupidQuestions/comments/2qbqwm/why_is_it_considered_so_bad_to_drive_using_both/
"Driving with one foot on each pedal respectively drastically increases your chance of accidentally braking/accelerating when you panic, which makes you more likely to get into a car accident. A 'Two Footed Panic' is a thing.
Also, pressing both at the same time damages your car, turns on your brake lights, and wastes gas. You have to have one foot completely off the brake or accelerator before pressing the other one, and by only using one foot, you ensure this. If you use both feet, then you might accidentally hit both at the same time. Also, your brake lights being on confused other drivers."