Not all folks can do it, but here in Oakland there are plenty of folks who could do it if we had better paths, but don’t because the roads are very dangerous for bikes and we have poor bike paths. This means we can get more people on bikes. Also I’m in favor of changing more than just bike paths - we could improve housing affordability so that people don’t have a 1.5 hour commute to their work. Also I have three bikes that are 15 years old. Buying a used bike uses even less resources than a used Vespa. I do have a newer ebike though. They’re really nice when you have more stuff to carry or longer distances to travel!