Will legal cannabis change society in Canada, starting Oct. 17, 2018 — four ways it might

I have waited my whole life for this day: Oct. 17, 2018, Canada becomes the first Western country to allow full marijuana legalization, medical and recreational. It can be sold for sale to anyone above 19 (18 in two provinces), including foreigners. Uruguay legalized cannabis in December 2013 but to avoid pot tourism, limits sales to citizens and legal residents.

It will be legal in all corners of this vast country, unlike the U.S. dichotomy — legal in some states and not others…