[rtisdale]

This was relevant to the parent post as well as your own comment.

https://www.bbc.com/news/uk-11660210

A UK study led by a panel of experts analyzed a number of recreational drugs and evaluated them across 16 different criteria.

Alcohol was one of the most dangerous drugs and was unique in that it was the only drug that posed more risk to society than it did for the actual user.

This is of course, not definitive proof of the parents assertions but the findings do lend evidence to it.

[shuckles]

What is their definition of harm to others? Meth addicts can be very violent yet this study says they pose little risk.

[whythre]

Meth addiction can also really mess with sex drives. In college I had a friend who was a social worker and she said that with the growing meth usage meant increased child sex abuse, basically due to parents getting high and then messing with their own kids. This is secondhand, but she was clearly disturbed by what was an increasingly prevalent issue in our college town.