First, you should know that 60% of the population have different size feet that we will pick up when measuring. Contrary to popular belief, the left foot is 80% of the time, the larger foot. It is explained that 80% of the population is right hand dominant. That to do any work, you can not lift with the right hand and the right foot forward. Everything is in the same plain and unbalanced. Instead you put your right hand forward and your left foot forward. This creates a three legged stool or tripod and is stable for lifting. It also exercises the foot opposite the dominant hand more, thus the slight variance in the size of the feet.
How true is it?