>

100%.  I might want to still be able to be employed, and actively engaged,  but I don't want to have to feel hopeless and like I have no choice but to work through ailments until death. 
One is hopeful and healthy, the other is dystopian.
"We're scrapping all wheelchairs because people want to walk." >

This. A lot of people don't work jobs that you can do at 70. 
You can sit in Congress until the coroner collects your body (average age is 60). But you're not working in an Amazon warehouse at 65. >

There is a HUGE difference between 

I still want to be active and do something engaging with my time in retirement! 

and 

I cant miss any time this week or I lose my house