I agree with plentyofpubesgarden.
Skunk is chemically enhanced and much stronger. Nobody should use it around children. It most certainly is contributing to mental health issues, and drug induced schizophrenia.
Actually, a relative of mine did in fact use both skunk and heroin, and he says the same. He finally stopped using heroin, and then, although he smoked a bit of weed, would not touch skunk for this reason. He said it made him paranoid.
Whether this is right or not, I dont think it is fair to take the risk in an enclosed space. Also, I drink a couple of glasses of wine in the evening often, but not in the day, when I am in charge of kids. And anyway, it isnt the same as using a substance in a confined space which can affect them too. (not saying it is good for you, over a certain amount, though).
So bird has a good point.
Now, I am not going to say that poverty and unemployment make some people worse than others. My own family had both when I was young. BUT the situation the OP describes here, in totality, suggests to me a chaotic lifestyle where drugs are involved, and probably more than weed. I actually therefore do think it is a CP issue.