But harm falls disproportionately on the less-intelligent, that was my point in bringing it up in the first place. If you are intelligent and disciplined you are better positioned to use drugs in a way that doesn't lead to harm.

Edit: From https://www.irp.wisc.edu/publications/fastfocus/pdfs/FF32-20...

> Recent research using 1992 to 2011 National Health Interview Survey data combined with data from the National Vital Statistics System indicates that the recent drug overdose epidemic—driven largely by prescription opioids and heroin—has implications for life expectancy differences by education level. Specifically, while drug overdose deaths have grown for all education groups, those with less than a high school education lost the most years of life. Overdose deaths now represent a substantial share of the widening inequality in life expectancy by education level.