We usually can't buy wine or beer made in another province.
Will Canada follow China and Australia? Is this the start of the Great Wall of Canada?
It is more Canadian-style government mandated trade protection to protect local vested interests and local mega millionaires from competition based outside the province.
To protect local trade unions and industry, we usually can't buy wine or beer made in another province.
Canada is in some respects a looser confederation than the EU.