This is definitively wrong. They do not meet the medical criteria for substance use or substance dependence. Nor is it statistically probable that a person eventually will, given that they have taken the drug at least once.
Please do not spread misinformation.
People will do drugs, I accept that. I just want them to know the actual risks of what they are doing. I can't stop adults choosing to take drugs but maybe I can remind a few people to be a lot more careful and to be less trusting of their suppliers.
Also do you realize what you're saying to the author of the root comment? Shame on you.
Even though I'd also like to see such a link, I'd argue that because you're the one making a rather strong (purportedly factual) statement, it's up to you to provide evidence for it.
Don't get me wrong: I don't have a strong conviction on this matter. I really do want to see some evidence to inform my own point of view.
That said, the vast majority of my friends have used cocaine, as have I. Most of them multiple times. None of them have a problem with cocaine.
I'd never encourage someone to experiment with cocaine or heroin because it can be quite dangerous. But misinformation is potentially even more dangerous.
This is demonstrably false, in most cases.