Unisex Bathrooms

When did this become the new thing at bars/clubs?   This is a terrible idea and I can't see the upside for either sex.  The last thing I want to do when I am out is have to piss next to someone of the opposite sex.  Hot girls can never be hot again when you know they are swimming a butt squirrel in the stall next to you.   That image can never get out of your head.   Plus, the bathroom is where guys go to fart so they are not blowing ass gas in the public areas.  It is also a positive because really drunk dudes show so much tact when around women in public areas, lets let them be close to them when they are doing their business.  The only person this really works well for is the drug dealers.  Yeah them!