That would be the dream. Websites won't use it, though, and making a specific protocol mandatory by law would be quite bad in a couple of years when greedy data brokers figure out new ways to exploit people and their data.
P3P was an early version of this concept: a browser-native privacy control system. No websites used it, it was only ever implemented by Microsoft, and has been removed from the last remaining browsers a while back.
I think Apple, Google, Microsoft, and Mozilla coming together to set up a privacy protocol to replace cookie banners would be the right way to handle things. Until usable browser UI exists, there's no way to force the companies currently employing dark patterns to comply.
P3P was an early version of this concept: a browser-native privacy control system. No websites used it, it was only ever implemented by Microsoft, and has been removed from the last remaining browsers a while back.
I think Apple, Google, Microsoft, and Mozilla coming together to set up a privacy protocol to replace cookie banners would be the right way to handle things. Until usable browser UI exists, there's no way to force the companies currently employing dark patterns to comply.