I grew-up in India. One of my friend had house with grill fences. When you visit him, first you will see metal grill fence around front of house. You open fence gate, on right there is main door, you remove your shoes & go inside. No one was suppose to wear any footwear in house. And we never did. During diwali festival, we kid used to build fort. On one occasion, we build very wide fort near main door. Something like (following image just to explanation, that is not our fort)

(Source : flickr.com/photos/52654993@N06/6282631874. )

After that, someone adult walks-in, remove his sandals near fort & went inside. We wanted no shoes near our fort. So someone come with idea. We bring 2-3 old pair of shoes, chappals from our home and keep them outside fence. If anyone came, they stop at gate, saw those footwears, remove their shoes/sandals/chappals with them & then go inside.

Now I am looking into ux space, thought this can be good example for UX principal Visibility

(Source : givegoodux.com/visibility-5-principles-inte..)