@ Korrol
Remember the first time you flew? I bet you paid attention and watched all the demo's then. Just imagine that out of the 200-300 people on the aircraft with you, there's bound to be someone flying for the first time who wants and needs to witness the demo's and be told that there's an info card in the seat pocket for them to read. Not to mention that different aircraft and different airlines have different procedures. If your ever involved in an incident i bet you'll see the worth of all this incovenience. The minute we start taking safety for granted is the very time an accident occurs.