Active interventions gave us war on drugs with hundreds of thousands of civilians dead (or rather millions if you count things like oxycontin -> fentanyl and other similar side effects), tens if not hundreds of millions of lives fucked up, and seeing a superpower losing a war with... some chemicals. No thank you
Without government restrictions, is society's revealed preference also widespread use of hard drugs?
Ever since opium wars, unadressed drug use was a problem that required active internevtion.