Japan has a shame culture. We are very much ashamed to behave in an irresponsible way in a public place,” Suzuki says. “That is demonstrated in some way in the way we express our grief. I use [the] term ‘grief,’ [but] some 15 years ago I don’t even know that kind of term. And if I say ‘grief’ to quite well-educated people, [they say] ‘What are you talking about? … What is it?’
(Source: NPR)