"All gender" restroom signs are the best

Another Moth StorySLAM at The Oberon in Cambridge, MA meant another night using an all-gender restroom. This time I brought friends who found themselves in the presence of the opposite sex in a restroom for the first time. 

One of my male friends walked in on four women in the restroom and had to confirm that he wasn't misunderstanding the meaning of "all gender." 

He wasn't.

The general consensus: This is no big deal.

Why has it taken so long for human beings to realize that people with penises and people with vaginas can pee and poop in the same space? 

Even better, the all-gender restroom has spurred some much appreciated creativity when it comes to signage.