Why Canadians drink bottled water? Two reasons come to mind. First, like the once ubiquitous telephone booth, try to find a public drinking fountain. (On second thought, I wouldn't drink out of one anyway). 
Second, because fast food retailers have found a golden egg. Instead of offering a free glass of ice water, most establishments will gladly sell you a bottle for $1.75, that you can buy by the case for about 12 cents each. 
Beats me why we allow valuable ground water supplies to be depleted when with modern filtering techniques we can use tap water and produce absolutely pure water.  Check out the home reverse osmosis units now available. Nestles was paying about $3.50 for every MILLION LITERS they took out of the ground. Another great deal by the province. Grrr.