The very first of the Southern Truths for Daily Living from
What Southern Women Know (That Every Woman Should) :
Femininity is a plus in the business and social worlds.
Which means, wearing a skirt just reminds everyone that you're a woman. And that ain't a bad thing

Men are naturally drawn to women, and I think it's a good idea to play that up as much as you can.
Although I do agree with KillarneyRose, a well-cut pants suit can be absolutely stunning and professional! It's just a matter of choosing THOSE types of pants suits above those other types... you know, the ones that make even attractive women look like monochromatic, gray-pinstripe blobs.