I am 78 and these days dont give a toss about fashion. In the 60's when I married I was very up to date with the traditional white wedding dress etc but my going away outfit was very up to date as it was a lovely golden cord jacket with hot pants and long boots. With my Mary Quant hair style very up to date! I had copper hair and it all looked very good.But even then I only took what appealed to me , not a sheep following fashion for its own sake. These days my hair is white,and I do get it well cut, which is all that matters to me. I couldnt be bothered sitting there getting a perm or faffing about, let alone find the price for fancy hair do's. So my hair is clean , easy to deal with and that is fine. When you say men and women let themselves go, I would expect that many people could not afford to be fashionable, and keeping up with the bills ,and eating properly is far more important than buying clothes that you can ill afford and would probably go out of fashion. For myself I say I have champagne taste and beer money, so have always liked silk, cashmere and pure cotton, and have a very sensitive skin so can not wear scratchy wool and hate manmade stuff. So I have clothes bought in sales more than 10 years ago, and other finds from charity shops, which so long as I can wash and are in good order I am happy to wear. I tend to go for classical stuff like my wonderful blue silk shirtwaister, which has been worn over black velvet trousers to sing in or go out in, and put with light blue cotton trousers looks great to go out in the day with. So , for myself , so long as I am clean and happy in my outfit, II think once you are dressed you can ignore clothes and concentrate on the people or what you are doing. Of course I am also very green too, reusing things so not contributing to the great pile of waste that gets thrown out. If following fashion is your thing good for you, but dont assume that older people always have the choice to do so.