To a Realtor, “slip-on’s” have it exactly backward.
Their entire appeal lies in their being slip-off’s.
After 3-4 consecutive showings — or 7 or 8 — that feature becomes pretty important.
Exception Proves the Rule
The vast majority of Realtors (and their clients) are very respectful about removing their shoes, because they know next time it could be their listing, and their irate client who has to deal with a dirty floor or carpet.
I recall an incident, years ago, when I was hosting a Broker Open and a Realtor with slush-covered shoes protested that she couldn’t remove them because she “had a bad back.”
She didn’t get to see my client’s house.