Anecdotally, Switzerland's kids are doing ok, but I haven't checked the public health stats.
One thing that helps is having a stable future ready for them to inherit. They can see the investments our generation is making for them (windmills, car chargers, trains), they have guaranteed education and apprenticeship to bring them into adulthood and independence, and they have a social safety net ready to catch them (I suspect they don't really understand the value of that though).
My point is, it is easy to say "you've got a bright future" and get them to believe it when the entire society is actually organized around making it actually true.
One thing that helps is having a stable future ready for them to inherit. They can see the investments our generation is making for them (windmills, car chargers, trains), they have guaranteed education and apprenticeship to bring them into adulthood and independence, and they have a social safety net ready to catch them (I suspect they don't really understand the value of that though).
My point is, it is easy to say "you've got a bright future" and get them to believe it when the entire society is actually organized around making it actually true.