Though voters ages 18 to 39 generally support Proposition 19 by slim margins, the measure is trailing among voters 40 and older.
I suspect that a pure legalizing-possession-plus-grow-your-own proposition might have passed, though of course that view is influenced by the fact that such a proposition would embody my preferred policy. While the feds could (and, I think, would) have stepped in to stop massive commercial growing, they couldn’t have stopped home-growing.
But – as usual in California – the question is how to get the money to gather the signatures to get such a thing on the ballot. Any proposal that doesn’t make someone rich has a hard time getting out of the starting gate.