Earlier quoted context omitted.
I'm also Scandinavian (Norwegian), and I never tip when going out. I can't think of any long-term outcome of a tipping culture that is efficient for the workers and employers, even if the amount the customer tipped was correlated with quality (the research I've read shows it's got more to do with looks). It is simply more efficient that both parties know what they are agreeing to up front when (1) the worker still ha…
It's definitely efficient for the worker. There's no employee tax or income tax on that money. The worker just gets the money directly.
It should also be said that restaurant staff in Norway make a much better living than in the US, both relative to other Norwegian workers and their US counterparts.