Provinces aren't states, but, for example, I live in a distinct nation to you (I assume, if you are under the "aegis of Britain" ;)
There is no written constitution, but there are specific acts, charters and traditions that form constitutional law, and define the clear divisions of responsibility between the provincial and federal government. That includes my government's right to set laws about signage of commercial establishments, specific consumer rights I get, and also the commercial law around the sale of both alcohol and cannabis.
There is no written constitution, but there are specific acts, charters and traditions that form constitutional law, and define the clear divisions of responsibility between the provincial and federal government. That includes my government's right to set laws about signage of commercial establishments, specific consumer rights I get, and also the commercial law around the sale of both alcohol and cannabis.