Hi, Jon!
Thanks for sharing your thoughts on the subject.

Every morning, I drive my wife to our small shop, and before I leave for my daily errands, I always have a coffee with her, in a small coffee shop exactly opposite our shop. It's a traditional Greek "kafenion", reserved originally just for men, but nowadays women are also welcomed! :)

Anyway, back to the subject...
...the other day I was trying to explain cryptocurrency to one group of the regulars...(mostly educated pensioners .. a vet, an ex-civil servant, an ex-businessman from South Africa..and others. They are all internet literate, and a lot of them said that they are ordering things from the internet, using either their credit card or PayPal.)

Their first question, about cryptocurrency, was, who is issuing it! I did try my best to explain, but to be honest, I don't think any of them was really convinced with my mumbling about blockchain, proof of work..etc, especially in the Greek language!

...next, they asked where can they keep it? ....more mumbling from me..about online wallets, cold storage, secure passwords..blah blah... at this point, two of them started playing a Backgammon game, and others seemed more interested for the game than me! :)

Strangely, the existence of many different cryptocurrencies was easily understood...there is an analog in their everyday experience in the form of different currencies!

What really unsettled them though, was the irreversibility of the transactions! From their point of view, as buyers, that was unacceptable!

In the end, some of them said that they may buy some as an investment, even pay with it for services, -restaurants, hotels..etc- but no-way they will risk to buy with crypto something through the internet!