It appears Princess has cut out the Captains welcome and fairwell cocktail parties on it's ships.(just returned Saturday from Ocean Princess 10day).
Drinks available in dining room and lido deck include water ,iced tea ,coffee and tea. Anything else is extra. You can buy a soda card ($20.00 on the 10 day)
good for unlimited fountain soda at any bar and in dining room.A bargain if you drink 2 sodas a day or more.
There were several days where Active players were offered drinks in the casino, but certainly not at all times. There apparently was champagne at the art auctions.
I did see a group behind me openly bring on a large volume of liquor, beer and mixers. That does not mean that the next person wouldn't be stopped.
Enjoy your cruise.