Most of us realise we’re not supposed to live in a state of constant fear. It isn’t any fun, for one thing; and we can see it leads us to make bad decisions. Jesus came right out and told us, “Be not afraid!”
How, though? Much as we’d like to, we can’t just decide to stop being afraid.
Gavin De Becker also wrote Protecting the Gift for worried parents. He’s a security expert who knows the techniques used by real preditors, not the imaginary kind.