If they have life jackets on boats, why not parachutes on airliners?

There are 101 reasons. Civil airliners fly at 30,000 feet or more, so you would need breathing equipment to survive at that height, if you didn't freeze to death. Carrying parachutes for everyone would be expensive. Can you imagine getting 300 untrained panicking people to put them on properly? - its bad enough getting everyone to sit down. By the way, there has been no case of a wide bodied aircraft landing successfully on water - so why bother with life-jackets anyway?

Using a parachute requires lots of training, and physical fitness. It also assumes that you will be at an altitude where you will be able to survive outside the pressurised airplane. Best toistay on the plane together until it hits the ground or water so all the bodies are together and so easier to collect and count after the event.

parachutes weigh too much and take up too much room on board the plane, where would they keep 200/400 parachutes. the other thing is, at the first sign of trouble passengers would put them on and try to jump out of the door no matter what height the plane was at.

Can you envisage the porblems of putting on parachutes and deploying them correctly when the jet you're in is hurtling to the ground?

Too many people, panicked and trying to get to the door while trying at the same time to secure their parachutes. People jumping out of a plane and getting it wrong...

Far, far too impractical to be effective, or even safe.

Look, if there is a problem when are flying you will be sure that you will day. life jackets are there just to create an illusion of safety.

Have you ever tried putting one on?

Apart from all the other issues: by the time you got every one sorted the plane would probably have crashed.

That is exactly why I don't fly in airplanes.

money! cost to much. simply put. tc