Of course we have problems. There will always be problems. Instead focus on giving the younger generation confidence that they can solve the problems by being optimistic about these things. I'm not saying to ignore these things. But instead recognize how good we actually have it, and how powerful and creative we are in solving insanely hard problems.
An acquaintance of mine told me over drinks, after complaining a lot about the current world and in all seriousness, that "I don't think there has ever been a worse time to be alive." I've heard similar sentiments, less drastically put, from quite a few people in person and all over social media. He wouldn't even backtrack after I started pushing him to seriously describe why life is somehow worse now than it has ever been.
It's infuriating, like seriously, you'd rather be born a random person 100 years ago instead of today? I can't even imagine someone wanting to be born a random person 50 years ago vs today (unless by random you mean "random middle class white heterosexual man in a western country" in which case, maybe your odds were better 50 years ago).
You'd have to be completely ignorant of almost all human history AND brainwashed by social media to come to this conclusion. Unfortunately I think this describes way too many people.
I don't think anyone would choose to live during World War 2 or the great depression. The idea that all generations are the same and there problems are the same is just a worthless platitude. Never before in history has humanity had the knowledge or capability of ending itself like it does now. That can't be ignored.