A colleague today told me his wife insists on a shoes-off policy. He dislikes having to ask visitors to remove their shoes. He is of African origin, but married to a white lady. I told him why it is important to keep the no-shoes rule and that wiping feet on a doormat is not sufficent.
Another colleague told me that when attending a guitar lesson in a home, she remembered having a conversation with me on this subject and removed her shoes.
Those of you who seem to love talking about shoe removal at work will find this one interesting. A colleague told me that in the previous office where she worked, she often removed her shoes. However, in the summer they tended to smell rather strong and her colleagues insited on her leaving the shoes outside!