Indeed, some people are doing this for many years already but it is never enough to enlighten others to adapt to the system knowing that they don't have the capacity to do it. In any form of cashless payment, nothing has been largely compared to fiat money which means that the majority are still reliant to paper money for their convenience and are most likely don't have a reason to stop using it. The word convenience makes people to choose what they want and a particular method of payment.
I think the irreversible process of switching to non-cash payments has been going on for a long time. All governments, with the help of the banking system, are very strongly promoting this form of payment, of course, they primarily pursue the goal of controlling the financial condition of their citizens. But it is very difficult to draw the attention of the government to the possibilities of cryptocurrency in non-cash payments. But the main role in this will be played by startups that will introduce blockchain into the banking sector, such as Africunia. Therefore, everything is still ahead.
Well the advantage I see of all this is that electronic payments over fiat is that those who have to pay with large sums of money do not need to transport it in suitcases or similar things, they would not be exposed to possible theft, However, it is likely that for people such as older adults, they do not like digital or electronic payment, I think that this would be a population that could have a hard time adapting, also for other people who prefer cash and are radical in that, you also have to protect yourself, that is In other words, in a possible world chaos that there is no electricity service or internet service, some type of support for payments of this style would have to be activated, perhaps the devices should have solar panels to receive payments and not depend on electricity, and that the internet activates a direct service through satellite.