I think being worried about a perceived danger can be a strong driver to finding solutions to it, in the right person. The right person would simply be anybody who has the habit of recognising their anxieties and doing something constructive about them.
But I also think there's a lot of worry that never gets resolved like that, and I suppose it's often been said that there's never any sense in worrying, that it achieves nothing but misery. I think it's true that worry as such can often be like that, and that there are some people who always find something to worry about as if it's in their nature to just upset themselves.
I seem to be a mixture, as I guess most people are. I do see myself as prone to worrying, particularly by getting anxious about small risks that many other people would see for what they were and not let it spoil their happiness so much. On the other hand, when any particular thing worries me repeatedly I tend to start looking for solutions, and I often find them. And I'm more emotionally resilient than I used to be, and I suspect I'm calmer than a lot of the people I know, these days.