I never wear nude hose. I usually wear pants, and I hardly ever show my bare legs, but WHEN I wear dresses or skirts, I usually wear opaque black tights. they are the most flattering, and much more fashionable than nude hose. You can even wear them with cute peep toe pumps and sandals-definitely anything closed toe, or whatever. It's much more "hip and current" than beige hose would be.
I have dark hair and light skin, and it seems like the skin on my calves and shins is EVEN WHITER than all my other skin-so I'll use the Jergens self tanning lotion too after showers just so they have a tiny bit of skin tone evening color, not even noticeable, it's just how they're "supposed to look" for when I wear capris or knee length shorts. As for your age, I see all ages in bare legs too instead of hose, I wouldn't sweat it when it's hottest summer time. Just get some Jergens tanning cream for the shins and calves, and be sure to have nice toe nails. :)
However in a conservative office where bare legs might not be allowed, you would look fine in nude hose, and will probably see other ladies in them.