Copenhagener here. People do use eBikes in Copenhagen, but I guess it depends on what you consider “very few”. My guesstimate would be that around one in five bikes is electric. As to why not more bikes are electric, Copenhagen - and Denmark in general - is very flat, so eBikes are more so used for:
long distances (say, people who live ~20 km from work but still want to bike there)
cargo/passenger bikes
letting people bike who otherwise wouldn’t physically be able to
Copenhagener here. People do use eBikes in Copenhagen, but I guess it depends on what you consider “very few”. My guesstimate would be that around one in five bikes is electric. As to why not more bikes are electric, Copenhagen - and Denmark in general - is very flat, so eBikes are more so used for: