Barklikeadog seems to assume that "towing something" = "towing something huge" and that Canada is all wilderness. Back when I lived in North Dakota I had a little utility trailer. It weighed next to nothing and I pulled it with my Honda Civic. It was great for moving furniture, or my rototiller, or lumber, anything that didn't weigh too much but was too big to fit in the car. It was almost like being able to turn the Civic into a small econo pickup truck.
In my current life I don't need a trailer, but a trailer hitch adds utility to a car. On a working farm you probably need a proper pickup truck, but most people who drive a pickup do so for the image, not because they actually need it. They're burning a ton of gasoline so they can play cowboy, and so that once or twice a year they can haul something when a small utility trailer would do the job just fine.
I would not expect the Model 3 to have very much towing capacity, but most city dwellers, and even most non-farm rural folks don't need much.
