IF she's a college prof, I'm sure there is some kitten who will come over when you are gone
My wife can barely change the TV from cable box to firestick, despite all my attempts to show her. She can't figure out why her iPhone doesn't ring when she puts it in silent mode either.
When I die, she will have her iPad, and won't need to connect to the earbuds via BT any longer, since the noise won't bother me. At that point, it's up to her kids to show her.
And no, I do NOT know her password