Yes.That may sum it up nicely. I always try to be clear and describe issues in terms they understand, such as using the same terms they do such as fusebox etc. The Elderly and their mature offspring like to deal with mature contractors and offer such refreshments and chat, especially in rural situations and I've sometimes felt I've offended by refusing the hospitality.
A chat with another sparks once asked me how come I always seem to be offered tea and munchies... he is a gobby youngster, thinks he's gods gift and insists on using correct terms and corrects customer...
I think we all know people like that.
I hate it when there's an informal chat, and someone goes on about lamps, line, phase, low voltage for 230v, etc, etc...
If it's meant to impress me, it doesn't.