The minority here, yes, but this is a small sample size.
Post-covid, the enthusiasm of strangers
has slightly surprised me, but I also find it reassuring.
Over the course of many trips to WDW, I have had a number of strangers offer small kindnesses. Random kindnesses used to be called paying it forward. CM's modeled kindness, and I think parkgoers copied them. Not everyone of course, but over a multi-day visit, it often happened at least once. In the days of paper fastpasses, I received quite a few and also gave away many of them from/to strangers.
People also used to - sometimes- do the same thing if they had extra dining plan credits, by buying meals for the people in line behind them at the QS food courts. Then again, I remember a few times -before the DDP- that people in a QS line offered to pay it forward to the people in line behind them.
While not drinks, we had a fun experience just this summer while visiting Universal that was a little similar. Late at night, I got on a shuttle boat and the PA was playing YMCA. A few people on the boat were doing the YMCA motions, so my group joined them. The song after that was Neil Diamond's song Sweet Caroline.
The whole boat joined together to sing along, and it was so much fun! The boat captain smiled, and she turned up the music whenever it got to the bum'bum'bum! part. Everyone had a blast.
After that, we were almost to the hotel, but the next song was Pharrell Williams' Happy, so the everyone continued singing along/seat dancing until we all disembarked.