Am I missing something, or are we just adapted for very different climates? Freezing is "wear a sweater" to you? I don't own a winter coat, but if I did it would come out of the closet somewhere in the 5-10C range.
Yeah I mean it's certainly subjective and I aligned the numbers to fall at 10 degree boundaries. But that's roughly where I fall. Anything above freezing and I'll usually prefer a sweater with a light jacket to a full winter coat.