Japanese have a custom which we look up to people older than us. It is often used in Club activities of school. Now I belong to a Hand Ball club. It is very strict and I don't like this relation. I think it influenced Japanese society.
Japanese society is seniority system.
Many Japanese think to take good care of older people is good. In Japan, many people divorce these days. Especially woman had no freedom. The father's power was very big, and they thought that family was a very important thing. So Japanese could not speak their opinions.