It really depends on where you live. There are some parts of the world where environmental factors like ocean humidity or winter road salting will cause a car’s frame to rust through in a few years if you’re not careful. Look up the Rust Belt for an example.
On the other hand, if you live somewhere warm and dry, your car’s frame and body will outlast its original mechanical components.
Eggs are a staple food and an ingredient in an absolute fuck ton of things. They’re also very nutrient-dense and a major source of protein for vegetarians and people who can’t eat meat. Sure, you can just not buy eggs but that’s not realistic for everyone and it doesn’t stop the price of everything that includes eggs as an ingredient from going up.