““What can we parents do? The children will do what they want anyway, and they never tell you the truth,” he told the news outlet.”
Nothing.
Each of our lives is in our own hands, subject to the consequences of our own choices, and sometimes one bad choice is all it takes.
I wouldn’t want to be the one that provided the drug to the dead daughter of a Russian billionaire/oligarch/friend of the Tsar.
There’s something wrong about that statement. While no parent can guard against accidents and misfortune, they can educate their kids about drugs. I mean to the”fear of God” level, where the kid may hate the parent but knows enough to say no. I did stuff I shouldn’t have but I also said no to a whole bunch more, and the reason was I knew better and was afraid of what my parents would say if they found out. Decisions have consequences.
Most adult behavior works that way and the job of parents is to train their kids to become functional adults.