Why do so many people worry about security without understanding anything about it?

Question

Information Security

More than once I stumble upon people who, having only basic knowledge in system administration and understanding almost nothing in cryptography, arrange real quests with public-private keys in order to transfer something.
One question. What for? Well, OK. I read a person that public keys are good. So, what is next? All the same, 99% of these people absolutely do not understand anything in cryptography. And without a deep understanding of the issue, these keys are no better (and probably worse) than the login-password bundle.
The password is at least in his head usually, but then he went up to someone who copied the file with the private key and that's it. Consider raped the whole system.
Well, or a variant with different vulnerabilities, when the absence / presence of a key plays little role.

Answer 1

The answer is simple - it's fashionable

Answer 2

If you fall from a ship into the sea and see a shark's fin, then without understanding anything about their types, the degree of danger and the optimal protection measures, you will still look for a secluded cage or something floating, because this will make you a little calmer. .. even if a whale shark swims by without noticing your cage without a bottom, and the white shark will gobble up along with your air mattress))

Answer 3

Because it's necessary. They drive cars without understanding anything, because they need to move around. And here you need to protect your data, it's obvious.