When you can use your feet more like a hand palm downward it really strengthens and changes the shape of muscles in your feet. This gives you balance when barefooted like a tree is rooted almost. I can stand as a flamingo on either foot for extended periods with my eyes closed and not fall over or put my other foot down to balance/steady myself. Either foot too I can do this now. It radically improved my posture as well, I could "feel" where I was leaning/slouching/off the center of gravity better now. Easier and takes less effort to stand straight than slouch, I engage fewer muscles standing correctly I learned.

I stand like a flamingo too, especially when I wash the dishes.
A habit I picked up from my mother.