The old traditional homes in Asia were raised about 2 feet off the ground for ventilation and staying above the cold damp earth. It was customary to remove your slippers in the entry which was at ground level and one would step up into the home in their socks. That is still working this way in modern Asian homes.

Another point is that Asians believe it is good health practice to be barefoot. The Chinese have been practicing foot reflexology for over 5 thousand years! Being barefoot allows your pressure points to be stimulated. When confined in shoes all day, your feet do not have the chance to breathe and stretch.

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