I'm Norwegian, and we're down to 7th place, but I've lived half my life in the UK, and I can tell you that Norwegians will complain just as much as people in the UK, if not far more whenever I visit family.
It's the national sport. In fact, if you tell most Norwegians about coming 7th on a World Happiness ranking, odds are high most of us will complain loudly about that too, thinking we deserve a higher spot, and that there's no ways the Finns and especially Swedes can be higher than us on the list (being beaten by the Danes is okay).
In other words, I don't think this matches cultural acceptability of complaining at all. Norwegians will express dissatisfaction loudly and about everything (don't get a Norwegian started on the quality of the roads, or taxes; at the same time, don't get a majority of Norwegians started on "American conditions" or the political parties that might bring them about by lowering taxes), while still generally living pretty great lives.
It's the national sport. In fact, if you tell most Norwegians about coming 7th on a World Happiness ranking, odds are high most of us will complain loudly about that too, thinking we deserve a higher spot, and that there's no ways the Finns and especially Swedes can be higher than us on the list (being beaten by the Danes is okay).
In other words, I don't think this matches cultural acceptability of complaining at all. Norwegians will express dissatisfaction loudly and about everything (don't get a Norwegian started on the quality of the roads, or taxes; at the same time, don't get a majority of Norwegians started on "American conditions" or the political parties that might bring them about by lowering taxes), while still generally living pretty great lives.