> His assertion the 70% of all drug users including alcohol and prescription users aren't addicted if anything seems extremely low to me. I'd say the vast major

> His assertion the 70% of all drug users including alcohol and prescription users aren't addicted if anything seems extremely low to me. I'd say the vast majority of my friends drink alcohol and are more than likely on prescription drugs but I don't think any of them are addicts > Which means that the other less common drugs must be a lot more addictive to bring the number down to 70% I don't think your sample of friends is enough to support this kind of conclusion. n is small, there is likely selection bias at play, and you can't have perfect knowledge of what your friends do when you're not around. it's not uncommon for addicts to be able to keep it together for a few hours of socializing. I had a friend in college who would only have a single glass of wine when he was visiting family. for a while, they thought he was very responsible or just not that interested in drinking. the reality was if he had more than one, he wouldn't be able to stop. back at school, he got plastered every day and eventually failed out and had to go to rehab. addicts can be very good at hiding things until they hit the tipping point where their life falls apart completely.