End-to-end encryption, by definition, is something that excludes any third-party from being able to intervene. If you take the Hobbesian view of the State and subscribe to the idea that Government has a legitimate monopoly on violence, how would a government be able to exercise this monopoly without relying on cooperation from any of the end parties? It is not in the interest of Governmental agents to give this much power to its citizens.

End-to-end encryption is something that NO government will ever adopt or actually push to its citizens, ever, unless they are one of the "ends" on this.

I don't buy it, and I hate that I am starting to sound like a conspiracy theorist, but if the concern about privacy was serious, why haven't we seen any legislation about encryption on email? Which country is actually educating people about PGP? Why is the privacy concern only for phone and messaging, where the telcos have been making their money all these years?

You can have a "Privacy Regulator" all you want, in the end it is just a role that is being used to give some sense of legitimacy in this play directed by the corporations.