All have at least completed undergraduate degrees by now. And the daughter alluded to above with the two postgraduate degrees (correction: she's still working on the doctorate, it turns out)? I probably should have mentioned that in her mid-twenties, the last point at which I have a direct account* of her, she was an occasional consumer of the demon herb, so you can put your "causal relationship" in your pipe and, you know.

*From her mother, whose own stance had considerably relaxed from its former rigidity.