Worth it. More scooters, please.
I'm in Austin where we have Lime, Bird, and Jump, and while I personally have yet to try the scooters, I strongly support more people riding electric scooters and believe the bike lane is the right place for them, at least out of the current options.
I don't hate the idea of having bike lanes and separate scooter lanes, but since we can't even manage to get bike lanes everywhere, I'm happy to go with putting them on the bike lanes.
I have to ride in the road for most of my commute, and a lot of human drivers are scary dangerous bad. Scooter riders are never more than annoying, and usually I can just pass them without difficulty if they're going slowly (which most are from a bike perspective). Most importantly, if they hit me, I'll likely be fine. (I've been hit by cars twice over the past ten years and I was fine in those instances too, but it's not my favorite experience. I've also had drivers try to force me off the road. People on their scooters don't do that.)
But when you consider the big picture, I think it's obvious that cars kill cyclists and pedestrians in the street much, MUCH more often that bikes kill pedestrians on the sidewalk.
The problem of getting ~3 miles in a city like SF (SoMa to Mission) involves a 10 min walk to a train, and several more minutes walking once you get off the train, or walking to a bus stop and waiting 10+ mins there, with another walk to your destination. 10-15 minute car or scooter trips easily become 45+ min public transport trips.