theyre not gonna learn to use bitcoin, only a handful of very young people are tech savvy enough to use smartphone to their fullest, the rest of them are just like our grandma dealing with smartphone.
If we look at it at a glance of course it feels a bit difficult, but gradually they will be able to understand or even do it easily, it's not time for bitcoin to be said to fail only because it's caused, by factors "are not good enough to use the phone for simple online banking". Humanely they are indeed friendly, but in banking, they have actually licensed robbers, which are covered by the law of the agency.
if the banker says that cash won't disappear, why are they so aggressively making payment platforms like wallets? You know, now every bank has its own platform for payment methods such as bill payment applications or whatever, it is a form of progress in time and cash will definitely be replaced by it, and bitcoin will also take an important position in the future
I dont think cash will be replaced so easily in the near future. Although the use of cards is aggressively progressing as of now, I believe that the use of cash will still have a very long life. Even while we can see that there has been adoptions of crypto more and more each day, it may not eradicate the use of cash for the years to come. Many complications will be encountered such as the need of having a smartphone or device plus internet in order to have access to crypto.