When teenage Toronto gangbangers can run hand gun rental businesses, one should appreciate that gun control has been as effective as Canada's laws to prohibit alcohol, gambling, drugs, and prostitution. (Ironically Canadian governments are now in the alcohol and gambling business & re about to enter the drug business.)

Most Canadians don't appreciate that many Canadian provinces tried  different forms of alcohol prohibition prior to the infamous US attempt. Enterprising Canadians learned the boot legging business in Canada and were well placed to met the demand when the US tried the same experiment.