My late Father had serious health problems his declining years. He couldn't bend down to tie his shoe laces, so he got the Velcro senior specials. I/We got a big laugh out of that.

One day on a visit, Dad said that he had finally hit rock bottom on the old age scale?
 
I asked what did it? He showed me his 3rd hand "grabber" tool that he NOW needed to close his Velcro shoe's :'(

I know when it comes to exercise/diet, it's all about the quality of life, not living longer at any expense.  When I can't tie my own shoes, wear pants with zippers or wipe my arse myself, I hope the Good Lord or a compassionate friend puts me down for the count :'(