> The scooters move more like bikes than walkers, but the language on our bike trail system explicitly forbids any "motorized vehicles"

If the bike lane laws disallow motorized vehicles, then how does the sidewalk law allow it? It sounds like the laws need to be updated to allowed motorized electric vehicles capable of going up to some reasonable maximum speed in the bike lane. Basically the inverse of the law that prevents mopeds and golf carts from going on the freeway today.