This one I rationalize with the fact that not everybody on earth is doing badly universally. You can strive to provide a bubble of good-living for your own offspring. Neither you nor them are liable for the state of everything else.
Effectively, For every kid choking on Chinese industrial fumes in Seoul, there is another experiencing pristine mountain air in Aspen. For every kid going hungry in a slum there is another doing well in a suburb. For every public event shooting in the US, there are thousands of peaceful public events in Canada or EU. For every kid drowning in climate change based flooding in Florida, there is another nestled on high ground in the blue ridge mountains.
I see it as creating a dome of safety for your own kids. Unless something dramatic like a global nuclear war occured tomorrow, I think your child can thrive safely within their dome without emotional or physical detriment to their development.
Could you explain what you meant here? Question is a bit broad. Do you mean what I'll do about myself in old age or do you mean what I'll do about the kids during my old age?