I have lived in three of the countries you name. Have you lived in any? I won't speak about the countries in which I haven't lived, but I'll correct you in your statement that Canada is socialist. It is not. Canada is capitalist/market-oriented.  The democratic socialist party is the very fringe left wing of Canadian politics. yes, too left even for Canada (which I love, by the way). 

Neither Norway nor Belgium, in which I have also lived, are democratic socialist countries. "More socialist than others" maybe.

This is one of my beefs with the Sanders people; they want to label any other country with any policies with even the slightest whiff of "socialism" (a term used SO incorrectly this election cycle that it's doing my head in) as a representative of the Nirvana that they believe Sanders' ideas will surely bring. However, the world has an infinite amount of shades of gray and stuffing a bunch of other nations under Sanders' ideology does not make it true, applicable, nor factual.