Classist shite, once again dragged out for purposes of self important trumpet blowing.
I used to live with a German woman, long time ago (I was renting a room from her at the time) who had the hard and fast rule about no shoes in the house. Fine, whatever. We had a workman over one afternoon, and she point blank refused to let the poor man do his job in peace, ended up putting fucking blankets down from the door to the area he was working in and making him walk on those - which of course meant he could not use the loo or grab a glass of water or anything else.
Towards the end he told me, quietly, as I was chatting to him to ask him if he needed anything, how humiliated he felt. He had holes in his socks and didn't want to show them, plus his feet tended to smell a bit in his workboots. The poor man was mortified and it would have made absolutely ZERO difference if he'd just been allowed to walk around normally and do his job.
You're cluelessly over privileged if you insist anyone removes their shoes when walking into your home.
And you must let people know of your foot fetish BEFORE they agree to come to your house. Stop assuming that your tiny bubble of privilege is how the rest of the world operates, stop assuming your own odd little rules are universal. They are not.
Signed - someone who is currently barefoot and doesn't wear shoes in the house who actually wants people who enter my home to feel comfortable and happy.