Rebuttal to your post:
1. Many Asian cities have elevated pedestrian walkway systems.
2. Helsinki has underground pedestrian malls/tunnels.
3. Toronto's first PATH pedestrian tunnel was built before the post WW2 car culture explosion.
4. Toronto's winter cycling volumes are less than 10% that of the summer cycling volumes. Real statistics say that winter weather greatly affects people's decision on transportation mode.
I have used a couple pedestrian tunnel/bridge networks extensively in frosty Canadian winter climates, I really appreciate them plus I think they are a fun way to get from place to place - being able to travel at a different layer than street-level feels refreshing/novel!
I have used a couple pedestrian tunnel/bridge networks extensively in frosty Canadian winter climates, I really appreciate them plus I think they are a fun way to get from place to place - being able to travel at a different layer than street-level feels refreshing/novel!