This is because of the difference between Japanese politeness and American politeness.

Source: Tatoeba

I don't think that it is possible to generalise about a whole nation and say how all Japanese people are.

Source: Tatoeba

We Japanese live on rice.

Source: Tatoeba

Tom speaks Japanese better than Japanese do.

Tom speaks Japanese better than the Japanese do.

Source: Tatoeba

Japanese people take three meals a day.

Japanese eat three meals a day.

Source: Tatoeba

It is said that the Japanese are very friendly to those that they know, and very indifferent to those they don't.

Source: Tatoeba

The Japanese at large consider themselves better off than they used to be.

Source: Tatoeba

Visitors are usually asked to remove their shoes before they enter a Japanese house.

At the entrance of a Japanese house, visitors are generally asked to take off their shoes.

Source: Tatoeba

The Japanese people have renounced war.

Source: Tatoeba