Yes I guess you're right when it comes to Ice addiction unfortunately. The secret is to never start so hope the kids at school are being educated not to even consider trying this stuff. It's such an evil drug.If it was that easy for all the world would be full of far less addicts.
Cocaine is also more addictive than tobacco. Plus remember drugs like ice and coke have probably cooked some of these blokes to the point where they can't just go cold turkey with ease. That certainly appears to be the case for Cousins. They've caused him mental health issues.