“And on another thread this morning, was a story about how families with children are moving out of San Francisco in big numbers.”
Been happening since the late 1960’s. In fact the big exodus (based on school attendance figures) really happened in 1968-1978. Since then the proportion of kids has been slowly but steadily falling. This is not new.
And probably the reason when you go through many areas today, all you see is middle-age and older, (presumably gay) men sitting around.
The final scenes of Dirty Harry where the psycho captures a school bus full of kids might have had a deeper meaning then.