As imbnwa said, it's lack of enforcement. Ignore those who say that it's good weather. San Diego has homeless but not nearly as many as San Francisco, despite S

As imbnwa said, it's lack of enforcement. Ignore those who say that it's good weather. San Diego has homeless but not nearly as many as San Francisco, despite San Diego having probably the best weather in the US. San Francisco, however, has many more services for the homeless than San Diego.