If you invite someone to your house, say as an evening guest , here is the scenario:
The guest has made an effort to dress up for the evening, say a nice dress, updo, jewellery etc. She turns up at your house where you ask all guests to take their shoes off. This guest turns to a carrier bag she has on her, and withdraws a pair of very nice shoes that she wishes to wear with her dress. They are not stilettos, so won't damage any wooden floors. She shows you the soles and explains they are specially clean ie have not been worn outside and have been wiped down to make sure they are spotless. She says she wishes to wear them as they are part of her outfit and she does not wish to be discomforted by having to go barefoot.
Would you acquiesce. If not, why not?