You obviously do not live in Chicago or Minneapolis. Winters make this a nonstarter
One unexpected benefit is that the muddy/wet boots don’t muss up the bike like they would if I was loading them into a car. Just drips out the bottom grate.
Lots of other small benefits but not so related to winter.
Stockholm January average: 25°F / –4°C (low) to 32°F / 0°C (high) — closer to Chicago than Minneapolis.
Having been splashed by busses in winter you have to be a special kind of crazy to ride a bike or motorcycle in Minneapolis or Chicago.
There is usually a week in January in Minneapolis where the high temperature for the day does not break -10F. Air temperature, not wind chill.
Minneapolis at least has a skyway for pedestrians in winter. Chicago loop, not so much.