What should the left foot do except when clutching and shifting?

In the operation of a manual transmission vehicle, the left foot is typically used for engaging the clutch when shifting gears. When not engaged in that activity, the best practice is for the left foot to remain on the floor. This position prevents unnecessary fatigue and allows for better control of the vehicle.

Keeping the left foot on the floor also helps in maintaining proper posture while driving. It ensures that the driver can quickly move their foot to the clutch when needed, without having to reach down or fumble around. This not only promotes safety but also enhances the driver's responsiveness during vehicle operation.

Additionally, pressing the brake with the left foot is not standard practice in driving most vehicles, including school buses, which typically instruct the use of the right foot for acceleration and braking. Lifting the left foot off the floor or resting it on the clutch can lead to accidental engagement of the clutch, which can disrupt the smooth operation of the vehicle and lead to potential stalling or other driving issues.