It's also not in the interest of websites to show the cookie popups either, but they do it because they are legally required to do so. I mean I think regulatin

It's also not in the interest of websites to show the cookie popups either, but they do it because they are legally required to do so. I mean I think regulating it in either place is a bit silly, but if we are going to force users to accept cookies on each site, putting it in the browser is far easier to enforce (since you don't have to go after each site that doesn't do it), and a much better user experience.