that's such a good question. I mean as a beginner it's even for the young people with the right knowledge of technology hard to understand bitcoins. But I think if someone would take the time to teach an older person about it, they would understand. It would take a little longer but I think the main point would be understandable.
I think its best to start by introducing it as currency like fiat that can be use to purchase online. From there they can understand learn further the uses of bitcoin of course with our assistance.
You are right, but I think it would be easy to teach old people about this technology if they are into it already. I'm talking about those old people who are in the industry of finance, investments and etc. It would be easy for them to learn it but the problem is those old people who doesn't even know how to use a computer or a phone. We will be having a hard time to teach them if they don't even want to learn it in the first place. SOme of them are comfortable already in the things they use, like how it is for my grandparents.
One way to teach them is let them use it. They would understand that it work the same as fiat, them let them slowly understand the technology step by step.