[ffumarola]

Parking fees, tolls, taxes, etc aren't market rate.

Also, visit any of the neighborhoods on the western half of San Francisco and you'll discover that it's de facto not allowed to be handicapped or pushing a stroller due to cars owning the sidewalks.

[Fins]

Not sure how taxes could be "market rate" to begin with, but don't those scooters just get dumped anywhere without any payments to the city or something?

Also, just one of many reasons why I don't go to San Francisco if I can help it at all.

[ffumarola]

The taxes you're referring to, I presumed, are things like DMV fees. Those are used for things like roads (construction, repair, salting, plowing, etc), bridges, highway patrols, etc. They aren't market rate because they don't actually cover their stated purpose, thus are subsidized from other taxes. Additionally, they don't price in externalities like noise, pollution, emergency services due to accidents, death and injury to persons, etc.

The scooters are indeed left on sidewalks. Luckily the 20 pound scooters aren't actually killing or maiming people, spouting out toxins into the air, ripping up the asphalt, blaring "honk" noises at all hours of the day, etc. Not much of a public nuisance all things considered :)