Why do the seats have to be flotation devices? The seats go down with the plane and while ‘Water Landings are survivable the odds of you surviving a Water Crash are 1.89%.

http://en.wikipedia.org/wiki/Water_landing

In addition, so few flights make water landings or crashes, that the system is a waste. Why not engineer a system that guarantees your safety whether the plane is going to crash into the water or on the ground?

http://freakonomics.blogs.nytimes.com/2009/01/16/a-water-landing-youve-got-to-be-kidding/

A better a method for the flight crew would be to have a system that aloud the flight crew to safely eject the passengers.

In WWII they filled hundreds of planes with soldiers while being shot at by German anti-aircraft cannons and they all jumped out, mostly landing safely whether the plane crashed or not. But if there is a problem with a civilian plane and it crashes, only 1.89 % of the passengers survive! Why? If the plane is going to crash, it is insane not to provide the passengers with a way to safely disembark from the plane before it hits the ground and explodes.

Why not engineer a system that, when the plane is going to have an emergency landing, you are automatically strapped securely into your seat, and ejected to safety? The systems at Disney World are designed to automatically hold you in place while g-forces less than those of an ejection twirl-you, whirl-you, and leave you smiling.

Is it because military personnel more important than civilians? Is that why military personnel are given parachutes and civilians are given pieces of rubber?