I think to understand crypto people need to know at least basics in economics and in computer science. Without that it's really hard to get how crypto works, but I believe that step-by-step learning can help anyone.
Yeah definitely one must be a computer literate and should have undergone training on computer education especially if you are born on 70's downwars where computer and internet that time is not yet establish. But to those who are born 70's onward then it could be easier for them like me since we are exposed already to the computer system and how it works.