Idea by @Mary Lee

Waymo now has minibuses in SF. These driverless minibuses have 4 passenger seats, but you can book up to 5 passengers depending on size. The County or individual cities should buy them to provide main street free shuttle round trip service in our transport hubs. For example, a shuttle from downtown SR to the West End, from Civic Center to Terra Linda mall, from Marin General to Bon Air Center to Larkspur Landing, from Novato Hamilton Smart Station to downtown Ignacio, etc.