Well for starters, it's still federally illegal even if it's legal in the State of California.
Secondly, even in California, "Recreational use of cannabis in public is still illegal."
Secondly, even in California, "Recreational use of cannabis in public is still illegal."
Call me ignorant, call me racist, call me heartless, call me whatever you want.
That you brought race into the discussion is pretty clear evidence that your concerns are not pot smoke.