Is it worth adding extra protection to your car?

Is it worth adding extra protection to your car? When I first learned you could get protective stuff like an aftermarket bumper for Chevy Silverado 1500 - BumperStock, I had a lot of questions about the factory “setup.” Why can’t cars be made crash-resistant and stronger from the start? It’s good that there’s a way to protect yourself and your car, but I still don’t get why I have to think about this myself and pay for it, and not even at an official dealer’s service center.