Depends how you look at it. Knowing things have a high likelihood of getting bad helps her focus on skills that are not dependant on a thriving and stable society.
Besides that, she is a well adjusted teenager, who is happy with life, has good friends and recognizes unhealthy behaviour in others.
As with everything else I teach her, this is just a small part of the whole that allows her to keep thriving in this world, while maintaining good mental health. I think most people would consider themselves blessed to have a teenage girl this well adjusted.
Protecting children from the truth is the unhealthy approach. You don't doom and gloom it, you explain it it calm rational. There is a method to the healthy sharing of information that doesn't crush a person's psyche.
I keep thinking some of us are listening to Hari Seldon and are preparing for collapse and a coming dark era. Maybe many centuries of unrest at a minimum, and likely never rebounding to current population levels (not necessarily a bad thing).
This is a frequent topic in our family discussions. Where would be the safest place to go, globally?
Do you plan to relocate your family somewhere else?
I think we already live in one of the better places on earth. Not overburdened by too much population (1 million people in a province with the landmass of Great Britain) , lots of nature, and far from centres of war or possible nuclear fallout. We are not a strategic location and have access to unlimited fresh water. Winter is the biggest environmental threat here, not counting other humans of course.
It varies depending on location. A more accurate name would be global weirding. Some places will get wetter, some drier, some areas will get much warmer, some will have more extreme cold events.
We might see a shift in air currents making the Sahara desert move back to being a grassland and Europe could lose much of its rainfall. Established agriculture will likely have a hard time adjusting to the new climate and could cause global food scarcity.