Yes, but there's the same risk with conventional bikes on streets today. And cities like San Francisco agree - they are making it legal for adults to ride electric scooters _without_ helmets so that it matches regulation around bicycle helmets: https://la.curbed.com/2018/9/21/17884220/bird-lime-scooters-...
I think the scooters are riskier in some ways. My experience is with bikes you can easily take one hand off the bike to signal a turn - what your traffic intention is. But with the scooters, it's not really possible to take your hands off the handlebars (you lose control!), and there is currently no blinker control to indicate your traffic intention. I wanted to take a left-turn on a scooter recently and this was an issue. I got honked-at.
I think they should add blinker light controls to the handlebars.
Yes! This is a major issue even in moderate traffic. They could probably adapt the under-side lights to function as turn signals. The scooters are just too narrow to drive one-handed.
Could you drive one footed and extend the other leg? Sorry I've never ridden a scooter. But you can ride a skateboard on one foot for short periods with some training.
