There are all kinds of drugs in the world, everything from caffeine to booze, and harder stuff.
Far as pot goes, or anything else, they can legalize it all for all I care, if you have a small enough brain to take hard drugs of any kind that could hook you, you probably deserve to die from it. Less people to support. When raising my kids I wasn't sure what to tell them about all these drugs, so I just told them almost everything is a drug including the sugar your dumping on your cereal, and anything done to excess, including drinking pop will not be good for your body, and I told them people get addicted to Mountain Dew and coke too...it's up to you to make sure everything you put in your body is in moderation, and even too much food can kill you. That's what I told my kids. Pot has been used for many years, it's nothing new. If it fixes something medically or gets rid of a headache even, I say go for it, for crying out loud they will give you perscriptions for hard drugs that you can get hooked on, don't know why some people are so scared of pot. I don't use it myself because I don't need to eat a bunch of food and go to sleep, and I enjoy being more alert, and it's probably too expensive for me anyway. I do enjoy a shot or two on Friday or Saturday of some booze sometimes, I just make sure I stop after that, and that is enough to more than relax me.
Too much of almost anything will be bad for you. People should be in charge of making those calls for themselves, if they make the wrong call, they can die from it. Outlawing stuff doesn't work anyways.
People sniff glue too...what you going to do, outlaw everything because some people can't control themselves?