The inner loop is 100 sq. miles (260 sq. kilometers). Right now (4:30PM on a Monday) drive times and cycling times are comparable (close enough its not really a deciding factor). But bicycling 6-10 miles for each delivery is a good way to get injured. Very few drivers here have any habit of expecting bicycles. When I bicycled to work, I got hit by a car roughly every other week - and that was just one 2 mile ride per day, not multiple 2-10 mile rides per day.
In Helsinki, delivery (of food) seems to be dominated by larger scooters with flat beds between yoke and seat post/rear fender. Maybe because the food delivery boxes are quite large, maybe because they have lots of insulation for winter use ? Maybe because the fat tires on the scooters are more stable on snow & ice ? Just guessing.
They still have the traditional vans though since they get loaded up once in the morning to deliver a ton of large packages.
Or maybe because EV transition is not low hanging fruits at all, idk.
Only force behind it seems to be the force of tradition. Creepy to see it holding so much control over even very young people who delivery drivers tend to be.