Just curious because I can't keep track of where ships are cruising. Were the Retreat lounges with self service alcohol on US departures? Or were they from a non-US port?
The airport and hotel lounges are my best analogy. In the US, there's pretty much always a bar and a bartender. If you go to a Marriott lounge outside the US, or a United Club/Lufthansa Club in Europe, there's pretty much always self-service alcohol. Beer, wine, sometimes full mixers. It's a pretty striking difference.