I don't see the point with getting married as in most cases you gain nothing. (other than a big pain in the ass when they fall apart)
It's also enough to sign some papers, so no need for a expensive wedding.
My brother and wife was smart, they just signed papers, then we as a family had dinner together.
Nothing fancy, just booked a table.
My dads wife actually lost benefits from the state, and didn't gain anything.
So what's the point...
We don't have tax on inheritance.