I'm 80 in June. Why are you guys surprised that older people can embrace the concept of Bitcoin? Many of us have enquiring minds, and are prepared to look at new concepts with an open attitude.
It's not that most older folks can't look at newer concepts with an open attitude, it's the fact that most older folks aren't willing to look at newer concepts in the first place. Also taking note that older folks that are into modern technology are really really rare to start with. I know a good chunk of the older demographic(aged 50+), and only like 1 out of 30 are decently into technology outside of just mindlessly scrolling Facebook.
Seriously though, good for you for being open minded.