Just because you don't like something or think it's in bad taste, doesn't mean it should be banned. I don't want any of you people telling me what the forget I can and can't do with my body.
Most of us fear what actions people will do under the influence of these substances. What if you take a drug and are incapable of handling the action and hurt someone/a lot of people? Oh it's fine they will just arrest you and be done with it. Lives lost that day? Ah we don't care more lives will be made tomorrow. I get that you have rights to do whatever you want to your body, but since you are also free to go out in the world around you under the influence of these substances you can just hurt others for no reason.
Maybe they should only be allowed inside your house but not on the streets. I mean what counts more, the pleasure for 1 human or the safety for a dozen?