I agree with you that one cannot wear the same pair of shoes everyday. But buying 2 pairs of the same sounds weird. haha
good morning sister. yup, it's unusual and weird as i treat shoes like underwear - many of the same pairs for rotation on a daily basis not just to minimize wear and tear but also to reduce the nauseous "ba-u", which typically accumulates in the insole of the footwear. an extra day of airing helps to diffuse as you can imagine the sweat and smell stuck in there with a guy wearing a tightly closed shoe all day. :p
my philosophy is to regard footwear which cums into constant contact with guck on the street and goo in the loo as the least denominator of personal wear, more utilitarian than ornamental. perhaps your swine thinks the same way.
enjoy your tgif and the weekend! and say "hi again" to sue.