Yeah, I guess you have a point about the social class based fashion over the years. But I meant mostly casual and leisure clothing in recent times. Like we tend to even look at or define recent decades based on the clothing styles (e.g. the 70s style). Albeit, they probably didn't change that drastically, as trousers are still trousers.The beard went in and out of fashion too, like in the wig-wearing colonial times almost no one had it, and in the Victorian era it came back. Now it's not as popular but many people have it.

Anyway I didn't really know that about how fast fashion changed in Roman times. Interesting to know. From what I've seen, the beard was popular with Romans early in their Republic and it went away for a long time until Hadrian and later emperors like Marcus Aurelius. I guess people will always desire change after a while.