My vote is yes, for those over 18 years of age. I think all drugs should be available over the counter. Instead of creating black markets for drugs, why not have it open market and just propagandize the dangers?
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Edit1:
Wow. That's a pretty even split in votes. We're at 2/2/2!

Edit2: 20 / 14 / 17. Legalization of all drugs is winning. Noice.
Like you said, " Instead of creating black markets for drugs ".
- Black market means legalize something illegal.
- Black market could be selling things that are dangerous
Like guns, people who are seeking for their own profit are selling drugs at black market. They don't care about the danger that their buyer will face. They only care about profit ( that's the seller vision about drugs selling )
Imagine if guns are legal and available at open market, and sold to the inappropriate person. Same as drugs, if drugs are legal and available for open market. Drugs consumption will raise in a large number and it will be even harder to control the negative effect of using drugs.
I think drugs are not for selling, so they don't need to be open in the market. Only the appropriate person who can use drugs for them or for the others, like Doctors or etc.