> The Danish are nice people
Just like I thought. I'm sure your solution would work when majority are nice people. That won't work on people who are from "lower social circles". We still have a lot of them in Poland and don't know how to make them behave better, because trying to make them behave better typically results in defensiveness about their way of life and a lot of excuses about their circumstances. They only dig their heels and start being more aggressive.
My experience with humanity is:
Most humans are nice people. Many are also overwhelmed, self absorbed and make excuses.
That general observation, for me at least, describes the world from rural Pakistan to backwater Tschechia.
The only exception were groups that had a very strong in-group out-group separation. These people always treated me with too much suspicion to express passing kindness.