There is advantage to wearing sensible shoes and wiser socks. Suddenly a foot enters a phase where its heel is soft as an ear lobe. But there is a curious and rather unpleasant burden that first has to be endured.
Probably it is true that most household dust comprises skin flakes. So fine a dust, it's a haze. But heels, after a week or two in sensible footwear, begin to produce what I would call scattered hail. Nor is it very attractive.