Old fashioned toilets

Stacy and Mckenzie went to the zoo today.  They got to see a lot of the wild animals.  Of course at one time, nature called.  They found the bathrooms and in they went.  They were like the old fashioned out house, but had plastic seats, the rest was open.  Wow, you don't have to flush!  Mckenzie was not impressed but she did use the facilities.  I didn't think that these places were allowed anymore.  Bet she wishes she never saw them either.