I'm Polish and my father (boomer generation) attended a boys-only high school, where Latin was part of the mandatory curriculum.
He managed to use it once when we were living in Kuwait and he had to arrange for my sister to get baptized - he knew that there were two missionaries visiting the local Cathedral - one Spanish and the other Polish but as he didn't know who was who, he started the conversation in Latin and of course got an appropriate response.
I’m confused. Why not start the conversation in Polish?