I take both Jump e-bikes as well as various scooters on the regular. Honestly I prefer Jump Bikes - it's almost always cheaper and faster and safer. I definitely feel more "seen" by cars as well.

That being said, with a scooter you aren't pedaling at all. Even on an e-assist bike you're still getting the adrenaline pumping and sorta sweaty. And a lot of people are afraid of riding bikes in traffic, so while even though bikes are actually much safer, there's a lower mental barrier to entry with scooters. People who almost never ride normal bikes (which is most people) have a harder time adopting the mindset of taking a bike share, e-assist or not.

Plus scooters are straight up more fun to ride with a group of friends - it's a genuinely fun thing to have out of town friends do.