People in the Nordic countries have a different expectation of privacy. Just search for the plethora of papers in economics and finance that use "Swedish/Danish/Finnish data". While anonymized, you can get a look at spending and investment of the whole population. After you move to a new place, you get a personalized onslaught of mail welcoming you the neighbourhood. Everything you do is connected to the personnummer (social security number), including loyalty cards in shops.