Great post, @extractum-lunae.

Fear m8ght be a natural instinct, these days many people suffer from irrational fears. I speak from personal experience, lol.

Also, you say fear can be contageous. I complete agree, but it's even worse. Fear is being taught. I hve been afraid of birds for years - just to give an example - simply because my mum was. Her reaction to birds made me believe that they were something I should be afraid from.
Later, I learned that was not true, and I don't fear them anymore. But it is a perfect example how it can be transferred onto other people.