I think it's an age thing. Same with my pops. He appreciates my excitement about Bitcoin. But he's not interested.
When I was trying to convince him to buy some "Yahoo" stock in the 90's. He was like "what is this yahoo thing. When I drive through the city, I don't see empty yahoo cups on the street. I see empty coca-cola cups, not yahoo. Nobody drinks yahoo."
These neighbors are both about the same age as my pops.