I learned to drive with my folk's cars. They both had manual transmissions, so left foot was clutch only. My drivers ed was in the mid 60's and some of the cars also had manual shift. So I have no problem. My daughter took driver's ed in the mid 90's and she was taught right foot gas and brake, left foot clutch or just leave it on the floor.
I always wondered why driver error is rarely mentioned (probably easier to blame something that can't talk and say what really happened). Try as the government may you can't idiot-proof a car or anything else. Look at all the changes to cars, anti-lock brakes, stability control, traction control, and the fools still end up upside down in the median. And since the era of no matter what you do, it's not really your fault, this stuff will continue to happen
I used to work for a company that did police car conversions. I had to take one of the Crown Vics to a Ford dealer. While I was waiting, a very angry customer and his wife came storming in. He started screaming that he had paid for a tune-up and other work and the van would not go faster than 50mph. The service advisor offered to go with him and find the problem. The wife stayed behind and continued to complain. Upon their return, the husband hurried in, told his wife "Let's go", she asked about the problem and how the dealership was going to fix it, He hurried her out the door and they left. The service advisor laughingly said there was carpeting, a floor mat and a rubber mat on the floor under the accelerator. He said he removed the items, took the guy for a ride on the freeway. When he hit 90mph, he said the customer was screaming for him to slow down.