Here in Finland it seems that marriage is seen as a "standard contract", as in the easiest way to organize common issues regarding inheritance (e.g. non-married

Here in Finland it seems that marriage is seen as a "standard contract", as in the easiest way to organize common issues regarding inheritance (e.g. non-married couple: kids get their share by birthright, but spouse not without separate agreement) or possessions are divided in case of separation. All legal avenues have been pursued. Everyone knows what to expect.