After spending many years as a financial advisor, I find the ravings of many "experts" today as banal. There are those that speak of coins as a "Ponzi" scheme and denounce the validity of the new form of economy. There are also some that want this world to go back to the 50s, and with it all the junk that we have been working to rid ourselves of.
Looking at the new order, I can see many similarities to the monetary base that we are used to. Our economic base is not tied to any metals or valuables, but believed to be of value and tradeable as though it were tangible treasure. We have not backed our currency for many years (since 1971) but our currency has been the standard of the world.
Why then are these "old-timers" so afraid of crypto? Because they are afraid of change. The same reason that we still have racism in this country and others, the same reason that we still have wars. The world has changed, and not everyone is comfortable with that. But to not change with it is socialogical death.
Yes, it is prone to swings in value. Anything that has potential is. But we need to have a universally accepted basis so that sane commerce can prevail. It is the future, and there will always be something that is new. But by understanding it and working within it, one can determine whether it is something to stick with or ignore. I choose to stick.
Millennial's (or generation Y, depending on the country, people from 30-40 years) are not afraid to crypto. There are many studies in the press showing that they prefer crypto to stocks.
These "old-timers" you are talking about are mostly those that still resist to internet. People that find to hard to read messages on whatsapp and take pictures using a smartphone. That see with disregard applications like booking.com and airbnb
There is not wrong with this "old-timers" generation. They are resisting to change because most of them didn't take internet and technology serious enough, and don't get it.
The thing is that own the money, they own the system.
But soon they will understand. Crypto is getting bigger and bigger.