It is legal for regulated medicinal use though - Canada was one of the countries really leading the way on that.
I spent time in Vancouver about 15 years ago and it was very tolerant and out in the open even then. There were several establishments where you could consume it. My favourite was the Blunt Brothers. I liked how they had a separate closed-off room for Tobacco smokers but you could smoke pure weed in the main area. V.Cool.