In this specific case he did not teach Blockchain and Bitcoin technologies. The employee thought it all boiled down to that, and unfortunately he had his losses.
That's why it's important to talk about technology, because price is just price. But the technology behind it and the good it brings will never change.
We should need to take our time to consider explaining to them the advantage of having it and of course the pros and cons as well especially the volatility in the crypto market to avoid some blames from them. The most accurate information about the advantages of this technology is the feature where you are the only one who has full control of your money. You don't need anyone or any banks when you want to use your bitcoins. Which is the most underrated feature of it and the most ignored until it's proven by the fact that they no longer have access to their trusted banks.