Carnival earned the bad reputation a few years ago and that reputation continues if you book one of their 3 or 4 day cruises from a number of different ports. We used to live in SoCal and sailed a couple of times on those short cruises. The bartenders were very aggressive at pushing heavy drinking. I witnessed several people who were heavily drunk really push the envelop of public humiliation. I even found a joint in a drawer in my stateroom.
I didn't see the same on the Breeze. Much more similar to the Disney experience, although Carnival was still really pushing the booze more than is typical for a
Disney cruise. Wife and I ordered a drink. We were half way done and we were asked if we wanted another. We said no. They walked away. We were nearly done and they just sat the two drinks down on the table. We said no thank you and they tried to talk us into it. All in fun I suppose, but it bordered on rude.
One last thing. The Carnival alcohol package encourages heavy consumption.