This question already has an answer here:
My question, would a multi-deployment airframe parachute system be viable on a commercial airline? For example, Grumman & Cirrus already use this system.
As with the automobile industries, they were found to be culpable of many road deaths prior to implementation of seatbelts (refused by all the automakers at the time), so is it the airlines' responsibility for not making flight safe enough when the technology is there to implement?
You cannot buy a new car without it having airbags, why not airframe parachute on every new plane as a standard?