Interestingly I saw this article recently from prince george about a woman being threatened with criminal charges for topless sunbathing in her back yard. Newer Canadian though, I don’t know the law well here; some nuance is given in the article.
https://www.cbc.ca/news/canada/british-columbia/topless-sunbather-complaint-rcmp-1.6898462
A sizeable chunk is too busy surviving.