So thin is in, but if you go back to the 50's and before, what they considered thin and what we considered thin are two different things. A Rubinesque figure would today be considered obese.
I personally think we put on some weight as we age as a natural preventative against inevitable loss of weight in advanced senior years. (I'm not talking about morbid obesity, but "padding.")
Also a little extra weight cushions an older person when they fall.
Both my MIL and FIL began to lose weight as their health failed. My FIL faired much better because he had some extra lbs to lose, my MIL was rail thin and with every illness just became weaker and weaker.
I like a Rubinesque figure...and I was born in the 70's...
Overweight does not mean obese.
I personally think we put on some weight as we age as a natural preventative against inevitable loss of weight in advanced senior years.