What will jmfcst do once one of his kids loses interest in religion? How would these dinner discussions go then?
Simply because he acts like it's an inevitable consequence of not being religious, I'll imagine that if one of his kids loses that interest, the conversation goes something like this:
"So daughter, you said had something you wanted to tell me over dinner?"
"Yes dad. I'm going to get married this summer."
"I'm surprised, but I'm happy for you, who's the lucky guy?"
"... It's not a guy, dad."