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. This is why many older people have a better understanding of the 'rona scam and vaccination mania, and don't just accept government and pharma' propaganda.
It is cool to see old and older people in bitcoin. It is not something common though. I am also aware that mothers invlove in bitcoin too. Some of the older folks and women in bitcoin are here just for the sake of their children. I said this because an 80years old man has actually retired from work and relieving his pension and other benefits? Of what use is investment again if not to leave something for their children.
In other ways, old people could be the real users of bitcoin as a currency because they like to practice everything as long as they live.
Bitcoin is slightly older than a decade, so the question of at what age is somewhat ambitious. You could ask at what year. I am sure not one at the age of 30 embraced bitcoin at the age of 10.
But for emphasis purposes, old people scale through in some investment schemes because they better understand scam and can differentiate same with genuineness. A young dude may pay less attention to details, and that cannot be said for an old man who truly understands the principle of money.