I can definitely see the appeal of the e-bikes, other than catching on fire, but even then..travel with marshmallows and a stick...+
No licensing on the lower power ones, adequate range for running around town a bit, low maintenance, & those who are interested in such things can easily tweak 'em.
Illegal to do that of course, but hard to catch if you're half smart about it, though I've seen a few articles noting that some European countries are finding ways to curb that.
For my use case though, the range is generally too short, so not yet for me.
I have to admit that I'm on the verge of swapping my 15-yr old Kymco for an e-scooter. They're fast, cheap, and easy to maintain. Some of the new Chinese models are REALLY REALLY fast! They only problem with e-machines is they catch fire and burn the house down.