The flight thing isn’t about the passengers paying attention, it’s about the airline being required to make the information available in a clear and concise way. They aren’t required to provide interpreters for blind and deaf passengers, the aircraft is structured to make deboarding easy and safe. It’s assumed that enough of the passengers will get the gist of it that in the event of an emergency enough people do the right thing that the rest will follow.
The flight thing isn’t about the passengers paying attention, it’s about the airline being required to make the information available in a clear and concise way. They aren’t required to provide interpreters for blind and deaf passengers, the aircraft is structured to make deboarding easy and safe. It’s assumed that enough of the passengers will get the gist of it that in the event of an emergency enough people do the right thing that the rest will follow.