I know. My dad kind of gets it, and he definitely gets inflation, even though I'm not sure he fully understands the causes. He's seen a 50x price increase in many things in 50 years.
But he just can't get his head around Bitcoin. He's very much a laggard with tech. He's a very late adopter of a mobile phone, for example.
I don't expect anything more from my parents, they've been good to us in tough times. But it's just hard thinking about their "hard earned" getting eaten away.