Bitcoin have lots of potential however it don't gonna replace banks or paper moneys in near future for sure as lots of people are still there in the world who can't even use electronic payment systems and for them bitcoin will be really hard system to understand.
Yeah and especially older generation will never prefer to use bitcoins and will keep supporting and using banks for their financial transactions as they will find bitcoin very complicated method.
Another important note to add is that older people are losing trust in banks more and more, with as result that they save up everything cash in their homes. It's a dangerous development, but they trust Bitcoin even less due to the media.
it's almost funny to see that the older generation try to avoid banks because they are operated by people gambling with their money on the financial markets, and that they avoid bitcoin due to the fact that it doesn't have a central authority. so yes, they end up holding large amounts of cash money, or they are hoarding gold as that is the only thing left for them to "trust".