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.
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.