Ever since Wilbur and Orville Wright proved that heavier than air machines could indeed fly, safety has been the first priority when it comes to air travel. Engines and chassis are inspected and re-inspected. It only makes sense that if some gizmo in your car engine breaks, your car will stop, and you can get out and take a look under the hood. You don’t have that luxury in an airplane. If the engine fails, you fall out of the sky.
And the same goes for in-flight safety. The pilots and crew must have calm and quiet in order to do their jobs. The passengers are entitled to the same.
And that is why rules about alcohol consumption and intoxicated passengers are so strict on an airplane. If a flight attendant believes that a person about to board the airplane is intoxicated, the attendant is required to prevent that person from boarding. After the airplane has left the ground, the attendants are very careful to ensure that a passenger does not consume too much alcohol.
