Commuting by car has and creates lots of problems but all of these are ignored because cars are normal and bikes aren't. That's the biggest problem.

For example, driving a car is necessary to be a full member of society in most places in the US. If you can't drive basic things like going to work, buying food, visiting family, seeing a doctor aren't possible or take 2-3x more time without a car. As a result people are very hesitant to take away people's licenses, even if they really shouldn't be driving.

> - Your commute is sufficiently short

This is the most important one. Most people would be happy biking 2mi/3.25km to work. I like biking a lot so I would bike up to 10mi/16km.

> - You have facilities to shower and dress at work

I commuted by bike for years in hot, humid climate without showering at work. Consider all of the remarkable achievements of humanity. You could figure out something that could work for your situation.

> - You don't have to bring kids or sizable cargo

Places where cycling is normal have various solutions for this.