Life expectancy trends have reversed and I suspect will worsen with more climate and zoonotic disease crossover, antibiotic resistance; though maybe mRNA cancer vax will balance that out.
https://www.npr.org/sections/health-shots/2022/12/22/1144864...
But the author is Canadian, working for the CBC, which I don’t think suffers from the ageism in most of corporate America. But if you are post retirement age, you are expensive and will be a target for employers because you certainly have lower future potential value by definition and there will be at least assumptions about reduced productivity.
Outside of doctor/lawyer where people admire experience, maybe nearing retirement folks can work as teachers or walmart greeter, but high paying jobs will be in short supply and favor the young. If AI further quelches job creation, it will be even harder for old people to keep working.