Comment by TeMPOraL

Here's an underappreciated problem with biking in cities: storage. Most people in cities live above ground[0], and buildings don't have dedicated bike storage. Bike theft is common, and is a unique crime in being simultaneously highly disrupting to the victim, trivial to pull off, and not big enough monetarily for the police to bother pursuing - so you can't really park on the street overnight like you'd do with a car; it's too risky. This means people end up storing bikes in their apartments. Bikes are heavy and unwieldy and full of pointy bits and hard edges; going up and down with them is super annoying, especially if you don't have a lift (or it isn't big enough to fit a bike).

Solve the storage problem, and a lot more people city dwellers owning a bike will start using it daily, and many of those who don't will buy one.

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[0] - Follows obviously from assuming most buildings have at least one floor.