It can rise to 90 but that doesn’t mean the majority of people can work until that point. My parents are 72 and 73.
My dad has just had serious back surgery. It’ll take him at least 3 months to recover. He’s incredibly deaf even with his hearing aids in. And while he’s not a stupid man (he was an accountant), his cognitive ability has very much declined over the past couple of years. He gets confused over some things (but some of this may just be his hearing).
My mother has now had 2 knee replacements, she has arthritis, needs regular injections in her back, she’s pretty much in constant pain. She was a childminder in her working life. She can hardly use her smart phone and can’t hold anything heavy at all. She drops things a lot. She’s stopped driving voluntarily as she doesn’t feel she’s safe enough.
Who is employing my parents?? They’d be off sick more than they’d be at work. They definitely couldn’t manage any new technology stuff. They can’t work far away from the house as (my mother at least) cannot drive anymore. What jobs would you like them doing until their state pension kicks in at 80?