When the Japanese started eyeing China in the 1930's, one thing they did was to flood the place with cheap opium. As food became scarce, people turned to opium - - it was so cheap and available. In a few years, the Japanese military figured the population was weakened enough to sap their will/ability to resist invasion.
Now think about how ubiquitous marijuana and meth have become here in the US. Think about how we have an "epidemic" of obesity, how young people must now face climate change and economic injustice that we didn't have to deal with. They need every bit of real mojo, gumption, perseverance, creativity and mental acuity they can muster just to compete in this world. But if they've got cheap and too strong dope, they can't compete. They have trouble getting the courage to get up off the sofa.
So if you want to know how legalization is going here, IMO, it is not a good thing. High rate of drug-induced psychosis. Kids effing up their brains permanently. Many necessary jobs unfilled because people can't pass a drug screen. And try to get some customer service out of people who couldn't think their way out of a breadbox. "It's all too hard. Have another toke, dude."