What is it like to be an elderly person?

I am talking specifically, I think, about people who are 80 and over. Give or take or course, but in general. I just have no idea what you might feel like at that point in your life. Obviously you have so much more wisdom and you know so much more, so are you annoyed with the young people around you who are dressing like skanks and listening to offensive and obnoxious music too loudly on the public transit? I was watching this woman today on the BART in SF and she was probably 80 or 85 ish, and she was so little and cute and she looked happy but I noticed her really checking out the young women. Just staring at them, not in a necessarily good or bad way, just….noticing them. I was wondering what she was thinking….and just what older people in general feel like in regards to the world around them. Do you become sad at a point because you know you’re “nearing the end” (or, at least, are closer to it than you were before)...I know this could get into a philosophical and deep debate but I don’t want it to. I have never had the chance to ask my 90 year old grandfather this question, since I don’t see him often, and he’s really the only old old person I know well enough! All the other seniors I’d helped take care of at the nursing homes were, mostly, too far gone I think to answer a question to the likes of this one. Anyhow….maybe you get what I’m trying to ask?