All so many years after bitcoin was created it's still early days compared to fiat. As years go on it's use will be wide spread still you'll find people who won't use cryptocurrency but even they'd have some knowledge about pros and cons. It's all about familiarising yourself with cryptocurrency but even that's not enough to prepare some people for possible negative consequences related to the volatile nature of bitcoin or any cryptocurrency.
When you create something new and different from Fiat, then it is quite expected that something will turn out with new properties and, therefore, both with new pros and cons. Accordingly, before working with such a new tool, you should familiarize yourself with its properties, if a person does not do this, then he himself is to blame for the possible negative consequences.
I don't understand the argument about the relationship between the ages of fiat and bitcoin. Are you seriously saying this in the 21st century? You may have noticed that now projects (especially in the field of digital technologies) are fully disclosed in a year or two. Whole industries are dying even faster - if you remember there were such pagers for example
