Hallo,
ich glaube, dass es nur für Autos gilt.
Schöne Grüße
Tom

I’m not an expert on the OSM tagging intricacies, so if "City WC" should be written to a different tag I don’t mind at all. To an external observer though the labeling on the toilet itself, as well as the surrounding signage hinted strongly that "City WC" is the name of the thing.