I totally reject the premise that only men have designed the Potter cat Rawrnald Hermeownie Pawdamort Mewgonagall Purrter Meowfoy Nyaville Sefurus Dumpurrdore shirt. Necessity is the mother of invention. I’ll be honest I’ve only briefly thought about the restroom situation at concerts and events. However, if this is such a passionate issue for woman why aren’t they advocating that a change is made and implemented? You cant put this issue on men only. Woman have to share responsibility for improving the world. If you have a better idea, step up or otherwise talk is cheap. I would also argue that it’s not kind of you to judge anyone who seeks to pursue something that you don’t find valuable. This lefty had to throw in his political piece while he had a soapbox. In some countries, all public facilities are unisex, and therein lies the queueing solution. It’s not like this is an unknown, or indeed even an unsolved issue. Urinals speed up their line and they have double the stalls in the women’s.