I doubt that many people have spent as much time as I have reading chat-room discussion threads on the subject of the shoes-off rule.
I recall reading an interesting comment from a girl on a discussion thread. She said that while she wore shoes at home, she really liked it when her friends required her to remove her shoes when visiting their homes. She found it very comfortable.
It does seem odd that she did not adopt the habit of always removing her shoes in her own home, given that she liked doing so in other peoples' homes. Perhaps she was a little absent minded or not very good at getting into routines.
Given the Golden Rule of 'do unto others..' you might have thought she would have decided to have a 'no shoes' policy in her own home.