Well if they put on the first clean thing this morning, I would say, that they are probably disinterested in clothes, so projecting a fashionable or stylish way of dressing is unimportant to them.
This may be because theyare maybe trying to say, I am too intellectual/intelligent to be interested in clothes (which is rubbish because clothing is essentially anthropology), but they just may not get turned on by textures or colours like others do
Or in my dp's case he is not interested in what he looks like because he truly is scruffy! Howver he has little interest in anything aethetical pleasing and doesn't notice subtle colour differences. Someone who is interested in these things may have some sense or interest in fashion, because colour, shape etc will be important to them
Women tend to me interetsed in clothing, because they as a species want to pick a suitable mate, so need to attract one using these sort of symbols and signs. Men are less interested because they don't need to keep a mate, they just need to inseminate. However, the male peacock does exist( think David Bowie, any other well dressed star beacuse they need to strut and pose)
Now before I get flamed I am a staunch feminist, and agree that women do not NEED a mate, but they may want one.
As I said, clothing and adornmnet issues essentially come down to anthropology. All civilistains use dress and adornment to say something about their society. It is not about being empty headed, and therefore interested in fashion. In fact it could be argued, that someone who is more "empty headed" may need to havea higher interest inpersonal adornment to attract a better mate. A more intelligent person could look after themselves, so maybe less interested. However, I love fashion and am super intelligent
Sorry.. just on my hobby horsey.
FWIW, I cannotstand to go out uncoordinated, itmakes me feel ill, and uncomfortable all day. What I particularly can't stand is wearing black socks in slightly different shades of black. But I am a very sad and misguided person, probabaly with OCD tendancies