First of all, I think taking off our shoes is to relax our feet, because home is the warmest place. When we get home, we need to relax wholeheartedly. When we are working, we usually wear leather shoes. So taking off our shoes after entering the house can make us more relaxed.
Secondly, this is also an inevitable factor. As we all know, Japan is an island country, surrounded by water, so the humidity is relatively high, so many of their building materials use a special kind of wood to raise houses. Therefore, they think that it is not very respectful whether they are at home or visiting other people's homes, so gradually, this has become a kind of Japanese.
Finally, I think Japan's cohesion is super high. They have great respect for the culture of their own country. No matter what country they are, they will not speak ill of their country and are very patriotic. This is also where our country needs to learn. Therefore, the Japanese generally have a very high cohesion.
Every country's culture is different, so we should respect not only our own culture, but also the culture of other countries, which is also a kind of respect for our own country.