You might choose to care about cocaine.
In enough quantity, it can fuel paranoid delusions and schizophrenic behavior, resulting in murderous actions.
There's no upside to this stuff. And it can directly affect you. Same with meth.
So can alcohol.
I’m worried that there are people who will start using cocaine or heroin as a type of weekend recreation, assuming they won’t get addicted. It may be socially acceptable, and they may think of it as weekend recreation, but there is still a risk of addiction. I imagine nobody starts out intending to become a drug addict. It just catches up with you.