You're not born with it. You're born with the capacity to feel it.
If I were dropped in a vat of poisonous snakes when I was a toddler, and none of them harmed me, I wouldn't be scared of snakes.
But having gone to a lake at a very young age and having a snake swim toward me with my grandmother yelling and my mother freaking out and leaving me...THAT would cause the fear trigger. I'm not phobic by any means. I can look at them. I can pet them at the zoo. But I LOATHE them outside a cage.
Fear is a good thing.
Fear can keep us from experiencing something potentially harmful. I don't plan on jumping off a twenty story building. I don't plan on swimming with the sharks. And if you ever see me in the Amazon, just shoot me. Because I've obviously lost my mental faculties.
But fear is also debilitating.
It can be harmful to the point of permanently making us handicapped. If I'm afraid to check my mail, because God forbid, it's full of rejection letters, then I have issues. And fear can choke out hope with a snarl and a bite.
Fear, like any emotion, deserves its only special place in our lives. If you can use it to grow as a person, then do. But if it consistently sucks the life out of you or weakens your motivation, then get rid of it!
But I'm serious about the Amazon thing.
9 months ago