Of course it helps if the city, and country in general, is completely flat. Cities in Norway or Nepal have mother nature against all form of manual locomotion.
Are you a time traveler from 2010 who's never heard of e-bikes?
In Copenhagen, the vast majority of people park their bikes on the street using only a cafe lock (frame mounted, immobilizes the rear wheel). The bikes are generally nothing special, old rusty junkers, with one or three gears. E-bikes flatten terrain but also you need an indoor place to store it and they become a magnet for theft. A cheap bike you can ride to the Metro and leave in the elements is versatile in a way e-bikes are not. (I say all this as a massive e-bike fan living in a very hilly US city who recently visited Copenhagen and adored its bike culture.)