low crime is not just a given, its a result of the design. A properly designed dense city planning reduces crime by default(people are less likely to commit crime if other people are watching and public spaces and buildings are designed for this purpose. Not just this- the social housing is cool too because it blocks concentration of marginalised people in one place, making it unsafe and rather spreads those people evenly across the city. There are many subtle things that are implemented in nordic countries to reduce crimes and its super interesting