I will be 80 on Monday. I had a hip replaced two months ago, and noticed that people started treating me as a 'poor old soul' when I was using firstly a wheeled trolley, then crutches. I am now walking unaided again, and the attitudes have gone back to normal. I just need to build up my strength, and hope to be walking longer distances again before too long. It was a pleasure to get back behind the wheel, after relying on lifts.
I certainly don't feel 80, and hope to remain fit and healthy for some years to come - eventually, I hope, meeting a quick and fairly pain-free end before needing to be cared for, or losing my marbles.
Growing older is inevitable, and we all do it at our own pace. A cheerful and positive attitude keeps me young, I think, and I am lucky to have been born with that nature. My sister has been 'old' since she was a teenager. Sadly, she has always been a self-centred misery-guts, despite (or maybe because) she was the spoiled post-war baby of the family. Though she is six years younger than me, I wouldn't swap lives with her.