Me Duck
Of course it needs regulation to ensure safe practice, but applying regulation by insisting on employment practices when those who seek it don't even apply it in their back yard smells of protectionism.
There are no cages that lock people into employment with Norwegian, yes of course there are industry standard bonds but not the sort of manacles that you see in Irish and some English airlines
The Norwegian culture is very much if you don't want to be here we'd rather you weren't here. It's not perfect of course, but our cousins from over the pond have only themselves to fear.