Browsers already had settings for deleting cookies. There was never a reason for banners whose only function was pulling the ladder up from smaller competitors and concentrating power in the hands of an oligopoly that could siphon data directly from the OS.

This coupled with a law mandating ISPs provide a "change IP on demand" feature would have given users a sort of "Tor light" level of privacy. Strong privacy is trivial to achieve for a government that doesn't have a conflicting goal of total surveillance.