This is not a health issue, but a question of the fundamental difference between the 'right' of society versus the right of the individual. Like it or not, bars and restaurants are ultimately owned by someone . The government does not have the right to regulate what a human being does with their property. Just because something is open to the public does not mean that the public has a right to tell the owner how to run their establishment. If you don't like it, use your economic power and go somewhere else.
Private property is one of the most basic human rights.
Without private property we are reduced to the level of serfs, owned by the government. Private property is a basic tenet of capitalism, the only economic system that is free. All governments must realize that they do not have the right to force on businesses regulations that they may or may not want. It is not the province of government to decide how someone will dispose of their property. So to the Toronto City Council, here is your Earth is Flat Award statute.