. . . "The majority of the city is pleasant and safe enough that it attracts tourists by the million, and does not have the bums, gangbangers, and teachers in shining armour of which you speak. (OK, homelessness is a problem, but he is more to do with the city's temperate climate than anything else, and you will find bums in other bay area cities including the low density ones.)The point I am making here is" . .