I'm not sure which area of the country you live in but the vast majority of people in the southwest and southern california likely do not live within walking or biking distance of their places of work.
Median commute distance is 10 miles (which is a reasonable e-bike commute depending on route) https://scag.ca.gov/sites/main/files/file-attachments/ej_jhf...
Almost 1 million daily public transit riders: https://www.metro.net/about/l-a-metro-surpasses-900k-daily-r...
Why did you think virtually nobody commutes via bike?