I'd say I dress in a similar way to most of my friends and acquaintances, although I tend to choose pants instead of skirts and dresses. I actually see very few women my age in ultra casual clothing--that look seems to be reserved for a younger, suburban demographic in my city.
As for trends, I'd say looking current is interpreted as adapting instead of adopting. Many of my friends travel and live internationally and I suspect a restrained style fits their lifestyle better a fashion-forward, trendy style might. It's also interesting, while dressing well is obviously important to the women in my circle, we rarely comment on each other's clothes or discuss fashion-related topics. I'd have no hesitation wearing something that was from the YLF website if it fit my personal style.