Please be aware that this topic is on a fine line, and that Proboards' Terms of Service/Community Guidelines lists Glamorizing the use of illegal substances and drugs as under objectionable/prohibited content, which could result in either the thread or the forum being removed.
That said, there is certainly a growing movement to legalize marijuana. Since Colorado and Washington have already done so, how it works there will probably be a big factor in how other states deal with it. Especially in concern to connected crime rates, establishing production safety/regulations, advertising/distributing, and keeping it out of schools. Considering there are still those that dispute the medical benefits, I'd say it still has quite a few years to go before it can legally compete with alcohol and tobacco for shelf space on a wide-spread level.
As for California, it has been decriminalized for medical use only, and over the years has other related bills introduced that you can read on Wikipedia. Those that were defeated were by narrow margins, so it seems that as public demand increases, it will be more likely to pass in coming years.
But there are still a lot of issues from the federal level, and until that gets sorted out (and especially what kind of stance the next president will take), regardless of what individual states allow, until it's okay federally, people will still run the risk of getting in trouble for having it.