top speed of 20-30 km/hr
Yeah, that's definitely not something that should be sharing space with pedestrians. Where I live, the maximum speed that's allowed without a driver's licence is 15 km/h, and it's legal to drive the classic mobility scooters anywhere - sidewalk, road, bicycle lane are all fine. Most of them seem to have a maximum speed of 6 km/h (you don't even need insurance for them at that speed).
Trouble with these enclosed models is that it doesn't seem like it's actually safe for them to drive on a road (or at 30 km/h, imagine colliding with a lantern pole at that speed ...), so the only place that might be alright for them is the bicycle lane. But even on a bicycle lane, I question the ability and willingness of their drivers to drive safely enough at 30 km/h to not endanger the people they're sharing the lane with. E-bikes are already an issue at a maximum of 25 km/h (especially when their drivers are elderly), this adds potentially another 5 km/h and a mostly false sense of security on top.