Originally Posted by
Hoyaheel
Believe on HAL that the drink package must also be purchased for everyone in the cabin (to eliminate some of the "sharing" issues that could otherwise arise)
Yes and I believe Carnival has the same policy. Sharing within a cabin becomes a non-issue and as 747FC pointed out the waitstaff usually figures that out quickly. The crew is there to provide friendly and responsive service not to police passenger behavior but some guests push the envelope.