In the stock market there is a long history of regulatory protection of unsophisticated investors, starting with the Securities Act of 1933 and Securities and Exchange Act of 1934. The whole point of these acts is to protect unsophisticated investors so they can invest in the stock market without fully understanding the details of how it works.
I understand that anything I buy is backed by ownership in an institution, that there are onerous regulatory and reporting requirements, centralized institutions managing it, ample liquidity if I want to get out at any point at that people get sent to prison if they try to manipulate it…
"Do you have a sufficient understanding of stock markets?"
For most people that's a "yes". They know what stocks are, what they represent, who the big players are to buy stocks on your behalf, and can be assured that the money is going to get to the right place.
This is just not the case for crypto (yet), not remotely. Tons of tech people hardly know how these things work.
I'm responding to the way the op phrased their initial statements. They implied that just because they did not have a deep understanding of something, it must be bad.
Crypto is something for them that they don't understand, just like the stock market is something that many people also don't understand.