I'm not suggesting that I personally make any judgement. Agreed, none of my business, I certainly wouldn't pass comment, unless I'm directly asked for my opinion, I have a social filter. But there are definitely people who haven't used a mirror. That isn't a heinous crime to say that.
I do it to myself, I take a critical look in the mirror when buying clothes and decide for myself if it suits me, if I feel good in the garment and I don't buy things just because they're in fashion if it doesn't suit my shape, height, build etc. It doesn't take much, but I genuinely don't think people do that based on what I see. It isn't the crime of the century, people can wear what they like, but they don't always dress to play to their strengths.
eg: I don't like those cold shoulder tops, I'd never choose them because they aren't my style. I don't wear crop tops not even when I'm on holiday or on the beach. I don't find them flattering and it's got nothing to do with age. It's about context as well. some clothes look OK in certain situations. Why do you think the Style and Beauty Board is full of this kind of discussion, because people who care about how they look, enjoy discussing whether their outfit is OK for xyz situation, and would it be flattering for someone who's x height and y weight or such and such an age. because it matters to some, if only more people asked the right questions and took on board comments as long as they're constructive and helpful. Maybe I'm used to my DM who has an Italian background and has taught me well, being candid with me, I'm totally fine with that and I know it comes from a good place, between the two of us.