For example, populations in the Scandinavian countries have high trust in their governments and let them collect a lot of private data. They have personal identification numbers that contain lots of personal information that many institutions (e.g. banks) have access to unless you ask for privacy protection. All of this also makes interaction with institutions very streamlined and easy, but it comes at the cost of less privacy.
In Norway and Sweden, for example, anyone can access personal income data about anyone living in the country. Full transparency, more or less.
On the other hand, a country like Germany does not issue personal identification numbers because the population is highly skeptical of data collection and registration, a remnant from the wars. Germany is much more bureaucratic and its government less efficient, but Germans prefer the arm's length approach to government data collection and almost no data is publicly accessible.