He must have gotten the idea from Dennis Leary
From “No Cure for Cancer”:
“I was reading an interview with Keith Richards in a magazine and in the interview Keith Richards intimated that kids should not do drugs. Keith Richards! Says that kids should not do drugs! Keith, we can’t do any more drugs because you already did them all, alright! There’s none left! We have to wait ‘till you die and smoke your ashes!”
How is his liver still functional??