public doesn't need to understand the technology and how it works completely in order to use it.
At this point in time, some degree of knowledge is important to be able to trust it, especially if we're dealing with
money.
"some degree of knowledge" is only knowing the basics like how to use a wallet and secure it, for example how to buy and use a hardware wallet! the "public" can easily learn that, it is not rocket science at this level. any deeper is not necessary to use it.
It's not rocket science to you. Say that to the people who still think you can only buy one entire bitcoin at a time.