it is often our skin weakness that prevents us from recruiting our muscles in a natural, synergistic fashion. Toughen up your feet by walking on terrain that yields to your foot in different ways. The callus that will develop from walking barefoot outside will have the best circulation and the most cellular activity of any part of the foot.
I’ve never directly considered the role skin has on our ability to use our muscles as they should be - though it’s obvious!
The main reason we don’t walk barefoot is due to it hurting our feet, which is completely a skin problem pushing us towards unnatural footwear. There is a relationship between movement and skin that’s very nifty!