@djsumdog Oh god, you're onto something there.
Again, I'm somewhat disinhibited at the moment, because I've had more than one glass of wine.
Yeah, you know what I realised? People will often not acknowledge your viewpoint if doing so would ruin the excuses they have for living in a certain way.
It's like that saying: "It is difficult to get a man to understand something, when his salary depends upon his not understanding it!"
I feel that this applies to life choices in general.