Originally Posted by
PastTense
The passenger has probably heard airline safety instructions dozens of time before. Is there that much difference between them?
The point of rebriefing something is to ensure that you actually do remember it. The fact that you heard it once, years ago, does NOT mean that you will actually recall it now.
Or are you suggesting that doing a takeoff brief once a year should be sufficient for pilots, because "it doesn't change that much"? /sarcasm
(I don't fly anything like as much as HT, but I still do what they describe)