Eh, he didn't know Cinderella's outfit was magically transformed, and in most tellings of the story, the glass slippers don't actually turn back like the rest of the stuff, for whatever reason.Had he waited a bit more until the magic disappears, the glass slippers would have turned back to her old shoes, which would absolutely be much more musty.
Dunno man:Baited successfully.
Way easier than checking it with a shitton of young maidens