"Year of living Danishly" [0] is this but for English -> Denmark.

Neighbours who knock on your door to explain you are putting the rubbish bin out wrongly in the street and it concerns them.

My sense of Denmark changed after reading this book, to one which included 'very high expectations of social conformity' which in some ways, matches Japan.

(ok. not this exactly because not primarily language focussed but there is topic drift in this thread)

[0] The Year of Living Danishly: Uncovering the Secrets of the World's Happiest Country - Helen Russell