Most people just want to get high, and they do (no one is stopping them), but they are forced to do so at vastly greater risk than if it was regulated. There will always be some people who want to push the limits, but we have ample evidence that, even given near-universal access, most people are pretty picky about the drugs they consume. Lots of people like to smoke a few hits off a joint. Comparatively very few people want to dab. Most people enjoy a beer or a glass of wine. Comparatively very few people like to take shots of 151.