If they're curious and it keeps on ticking on them then they should be the one to start to realize and understand what Bitcoin is and if they can attain to take the risk that they are having with it.
Because if they can't, there's no age gap on this one. Someone who can risk will have to take risk and those that can't even the younger ones, they'll have to flee the market and ignore it.
I don't know, maybe according to them someone who is over 50 years old is old-fashioned and doesn't want to keep up with technological developments and maybe according to them people who are over 50 years old experience a setback in thinking because of their health and physical factors. But we can't generalize that everything is like that, in fact there are many people who are over 50 years old who are still thirsty for learning and knowledge and many are still following technological developments.
I think teaching someone from the older generation has several advantages, namely they have a more mature understanding and mindset. And I think it's worth it to teach the older generation about Bitcoin as long as they have the will to learn and as long as they are not seriously ill.
Because someone who is experiencing illness or health problems in my opinion is better not to give them much thought so as not to affect their health condition.