We disagree on how human nature works and the ability for normal people to become educated on every topic that can harm them. People trust their doctor and don't have the medical training to know if something is riskier than they're told. Addiction is dangerous precisely because it overrides someone's ability to change their mind later.

Purdue and our system of insurance created monetary incentives for doctors to overprescribe and misled them about the side effects. Normal people died even when they followed instructions because of the cycle of withdrawal symptoms.

History has repeated waves of addictive drugs because there's alway someone with an incentive to sell them. This is not a place where market outcomes work.