It is really so tough to teach old people about bitcoin, crypto currency and block chain technology. Many people don't know about internet and features of it let alone bitcoin. But if we discuss about bitcoin with them in daily basis, then they may able to understand it.
Yes but as long as old people are willing to learn about bitcoin, it is worth it. Cryptocurrency may seem to be impossible for them to learn because it is all about technology, but deep inside them, they want to know about technology. For me, there's a way to make them understand about bitcoin aside from discussing bitcoin with them on a daily basis, they should start using and knowing about the internet, and they will probably get more attached to it.