Drug use is a cultural problem, including for alcoholism. Look at the countries that produce the street drugs, they have no struggles with addiction in their broader society.
Rampant open drug use and getting high in public in Canada is an indictment of how screw up Canadians are because they really don't care as much for others as Canadians like to think they do. They want to feel good like the con of a lie about "I'm a good perso" but refuse to make a personal commitment to build personal relationships with a variety of people so others don't live their life so alone and express a human connection.
It's not only about problems, people also need to share joyous moments with others, as well as with those who will help carry their burdens.