I didn't read through the entire thread so there may be similar opinions, but I do agree that the term "senior" no longer cuts it.
So you've got "senior"--and then what--the "frail elderly?" What the heck does that mean? I'm sure we all know 80+ year olds that could run circles around 60 year olds. I'm 65 years old (going on 18) and it's a little disconcerting to be lumped in with my 84 year old aunt, although I must concede that she's sharp as a tack, and some days is more mentally "with it" than I am.
I like the idea of a "3rd age"--or subcategories like bronze (55-69), silver (70-84), golden (85-99)--AND if you're lucky--DIAMOND (100+)
I wouldn't mind being called a "Bronze Bombshell"