Yeah, roaming around Toronto on a bicycle in summer is fun. In winter? Not so much. (I've done it, when I was younger, poorer and single.)
Riding a bicycle (or scooter/motorcycle) when there's ice/slush on the roads is uncomfortable and dangerous, which unsurprisingly is why very few people commute by bicycle year round in Toronto.
I'll believe governments are actually serious about combating climate change when they start offering serious tax incentives for people to work from home or local co-working spaces.