Yes, right. It is parents' responsibility to ensure their kids don't smoke cigrettes and take opioid tablets. It's also their responsibility to ensure they themselves don't smoke or take opioid tablets. I suppose my "hot take" is that adults are responsible for their actions, including how they parent their children.

We should also prevent the supply of these things and regulate harmful corporate behavior, but that doesn't absolve parents of their responsibility.

Your response indicates two things:

1. You have no idea about teenagers.

2. You have no idea about the causes of the opioid crisis.

Also, I did not conflate the two which you appear to think I have done.

Either you're conflating the two or your second sentence is irrelevant to the discussion at hand. In the spirit of charitable interpretation, I assumed you included a remark about opioids because you thought it relevant. I apologise for that assumption, and thank you for sharing your irrelevant thoughts about the opioid epidemic.