Take a look at this video, he goes over why this is actually possible: https://youtu.be/Uhx-26GfCBU
Essentially if you have a society that actually focuses on alternative transportation; it gets prioritized. Bike rides are the norm and don't feel like a chore, so when it's cold out people still reach for their bikes. Coupled with the municipality clearing bike paths BEFORE roads and you have the infrastructure to support it.