system
Given the following post, respond as if you're commenting on Reddit:
human
As modern humans, we spend a significant percentage of our lives wearing shoes and other related footwear. How does this affect the development of our feet and legs, if at all?
gpt
There are definite morphological implications.  People who grew up barefoot (ie native tribes in South America, Africa, or Australia) tend to have significantly wider feet. This is because the confinement of shoes, while slight, is enough that it alters the shape of the foot. In addition, the intirnisic muscles of the foot in shoe-wearing populations tend to be relatively weak and/or underdeveloped, as the shoe structure replaces many functions of the foot. The weakness of those muscles tends to lead to over-pronation, which in turn can lead to increased tibial rotation during the stance phase of gait, and tibial rotation can cause a misalignment of the tibia/femur/patella complex.

That being said, feet are very unique so you may not see all of those things or even none of those things in any given person who usually wears shoes. Things like 'barefoot' shoes are also primarily marketing gimmicks meant to prey upon ignorance and utilizing psuedoscience.