(These setups showed up all over Europe years ago, with gas stations outsourcing their toilet facilities to companies taking care of cleaning and maintenance. Payment is collected on entry, which gives the customer a ticket, which entitles them to 30-cent-or-so discount on coffee or whatever. Advertising is supposed to make this all work. It does not seem to have been a very successful model, with many facilities being in a state of disrepair as shown in these pictures)