The pedals are super useful because you still exercise, something that many people need.
Also, I used an electric scooter / moped without pedals for a while, and it completely sucks in colder months. Because you are just sitting there doing nothing getting cold. If the ride is long you can really notice. On a (electric) bicycle it is much better.
Here in Netherlands people are using them more and more. They completely ditch their car and go to work with these things, also in ************ weather.
Much more healthy while saving lots of money.
The ones that go above 25 km / h are in a different class requiring a small license plate and helmet.
The ones below 25 km / h are very common.
Even my mom at 64 took this bicycle to work, so they didnt have to replace the second car (which needed to go because it was worn out) with a new one for the short time up to retirement, after which they didnt need two cars anymore.
But yeah, we have decent cycling infrastructure and cycling is in our culture.
For those mountainbikes I don't get the electrical assist. Isn't the exercise what makes it fun and healthy?
Or are you the kind of guys that don't want to pedal on your bicycle, and at other times take the car to the fitness school to work out because you need exercise.