because maybe that's how they like to do things in their house not everyone takes of there shoes before entering a house
Removing shoes before entering a house is usually a cultural rather than a religious tradition. It is common to many Eastern countries, as well as Scandinavia. However, some religions require removing shoes before entering a house of worship or a temple. Muslims remove their shoes before entering a mosque, Hindus remove shoes before entering a temple, and Sikhs remove shoes before entering a gurudwara.
Before entering a Japanese house, it is customary to remove your shoes and put on slippers provided at the entrance. This is done to keep the home clean as shoes are considered dirty from outside. It is also polite to greet the hosts with a bow and say "sumimasen" (excuse me) before entering.
Most of people in china , after go home, change into slipper.
Chinese people always take off there shoes when going into a room bceauce they are showing respect to the family.
Removing shoes before entering a Wharenui, or a Māori meeting house, is a sign of respect for the sacredness of the space. It is a cultural practice in Māori culture and signifies leaving behind the outside world and entering into a spiritually significant space. It also helps to keep the Wharenui clean as shoes can bring dirt and other impurities from the outside.
You should take off your shoes before entering
It is a Japanese tradition to remove your shoes when entering the house.
Take your shoes off
to take shoes off upon entering a house
you have to take ur shoes off before entering
take off your shoes and wash
it is a sign of respect :)