system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When Toyota or Volkswagen has a massive recall on their cars, it costs those companies millions of dollars. But when the F-35 runs into problems, why do we (the taxpayers) cover the cost, not Lockheed Martin?
gpt
You didn't design the car.

Plane designs incorporate feedback and testing from the customer, who is then responsible if the design is a death trap. 

If you asked VW to add something non stock and they made it to your specifications, you would be responsible for that fix, too. But mainstream car companies don't do that.