Because obviously we have already done that for telephones.
"we should have right to deplane if we don't like the answer"
Would you like to purchase a parachute, sir?
Another thing that annoys me is the diversity of animals and plants on Earth. It makes it so hard to study them all. Isn't it time to concentrate on the consolidation and standardisation living species in general?
You can not get anything worthwhile done without raising a sweat. -- The First Law Of Thermodynamics