Wouldn’t you rather want to compare manually operating a bicycle to an electric bicycle? They’ve basically taken over China for more than a decade now, so it’s not like they are uncommon.
E-bikes are fine. My point was that bikes are not very efficient because of shitty aerodynamics. A light, low and narrow electric vehicle would be more efficient and more palatable to a lot of people than bikes.
It's not true at all!
Most of the forces you have to overcome when cycling are from air resistance. At around 10mph it's already majority of resistance and at about 18mph it's more than 80%.
This is the reason the best upgrade speed wise for a casual road cyclists are tight clothes. This is also the reason you could be way more efficient if you construct a tear drop shaped vehicle. Illustration from Wikipedia:
https://en.m.wikipedia.org/wiki/Drag_coefficient