Not very many still have them, but some. There are some devices of older design that continue to be manufactured without engineering update, or devices which were made like tanks and just won't die that continue to need them. For example, dot matrix and tractor feed printers. These may still be used for label printing in libraries, for receipts, or for certain types of reporting. Also, some ID card printers, being expensive, are expected to only be replaced on pain of death. For many businesses, then, especially small businesses, parallel ports are still indispensable.