Motorcycles and cars are both capable of highway speeds, so they're easier to envision as a replacement when the benefit of cars (weather protection, passenger/cargo space) are irrelevant. Ebikes make great sense for shorter distance travel (i.e. in cities) when sufficient bicycle infrastructure is available (bike lanes and secure parking), but if neither of those are true in the circumstances, it's difficult to convince people to "give up" their cars.
Yeah, that's a much more eloquent and detailed version of what I was trying to say. Sucks that so many cities are designed around the car. There's a good Youtube channel called "More Than Bikes" about this.
