I'm glad you managed to avoid the reaper, but every single person I know who decided to commute using a bike wound up in the hospital within a year (Boston, San Francisco, Los Angeles, San Diego).

That's like two dozen+ people without a single exception to the contrary. Yes, it's anecdata, but it's quite a lot of anecdata with a strong signal to noise ratio.

Bike infrastructure cannot share with cars given the magnitude of the consequences when the two vehicles interact unintentionally.