Okay. I see this mistake, or similar ones, all the time. Let’s break it down.
So this image is clearly wrong:
It’s wrong because “mens” is not a word. That’s pretty clear-cut. But then there’s this:
This one drives me nuts. “Ladies” is, in fact, a word. And in a bizarre way, “ladies room” could be a debatably correct construction. But in this case it’s clearly wrong, because it’s in parallel with “mens,” indicating that the aim was possessive declarations in both cases. Right? Am I missing something?
See, I really think they both need to be possessive if you’re going to add the “room” on there – Ladies Room bugs me only slightly less than Mens Room does.