BSJ N°4 – Japan, like the UK, has a wide variety of accents, though there is a standard Japanese based on the way the language is spoken in Tokyo. However, speaking colloquially is not very feminine, so women speak correctly. Men however, take great pride in mumbling, grunting, swearing and being incomprehensible.
As such, those of us who are learning Japanese from the start and who have half of our DNA contained in Y chromosomes have to suffer the constant humiliation of speaking like women with deep voices until finally we master the art of the grunt. Grrrrrr.