This is a nonsensical, straw man argument that is propped up over and over in these threads. I pay taxes and registration fees to the state every year for the privilege of using public roads (and parking on them). I pay the city for parking. I pay CDOT to use the bridge. We have laws regarding the proper and improper usage of motor vehicles, with appropriate law enforcement to implement those rules.
None of this exists with these scooters. It's just another bullshit VC play at making money off arbitraging public safety and wellbeing in an environment they don't have to deal with. The hubris has become absolutely disgusting.
Dodging a parked scooter on the sidewalk is no more burdensome to me than having to step around every parking meter that crowds the sidewalk presently.