I think it would be interesting if it happened, at least to see if/how it would change my daily life at all. I would argue against it based on the idea that such a habit isn't really good for you, but I look at alcohol and I'm not sure how weed could be worse. Especially in terms of drunk driving-- I think I watched a video report where high drivers were more relaxed and actually performed better than their baseline drives? I'd have to see a very credible study to decide if DUI in that manner's acceptable or not.

Anyway. I doubt that legalization will ever happen, not because it's not a legitimate idea, but because people in government are so fundamentally against the idea that they'll never give it a chance.