Apparently that isn't the case and there are a heap of people who are interested but don't know (or don't feel comfortable dealing with) anybody who makes a living selling it. There should probably be a public information campaign about how it may not be physically addictive but be prepared to find that it's insanely habit-forming, because every situation is improved by a slight buzz.
I used to smoke weed when I was younger. Now it's rarely, and yes, it's partly because we don't have a direct contact (friends do), but more than that I say it's because I find it hard on the lungs and vaping doesn't seem to have much effect.
It's hard to say whether I'd smoke more often if I could stop on my way home and pick up a joint but something tells me that probably not. I would therefore agree, if anyone wants to smoke weed now, they would find a a way and I don't think legalization will make much of a difference in consumption.
As for making 'every situation' better, no definitely not for me. It's always been a strictly at-home thing for me. I could never smoke and go out in public, I feel way too self-conscious.