I used to wear them when I was young and had to cover up leg hair that I wanted to conceal but my legs have been smooth for years and I like the look and the feel of going out in bare legs. Besides, my pumps tend to slip out more easily when I wear any kind of stocking. Bottom line: I don't like the feeling.
I was reading up on fashion advice on this issue and the consensus seemed to be that you should do what you are comfortable with provided your legs don’t look uneven with discolorations or have rough patchy skin. In my opinion, a tanning cream can take care of much of this issue.
It seems that women under 40 are the ones who most prefer to leave the stockings at home but even in this age range there are some that swear by them which only proves how much of a personal issue it has become. In my office it seems to run about the same although many women just wear pants.
I say just be yourself although I can see certain occasions where they are definitely required in more formal situations.