The secret reason they are doing this is because governments want to be able to identify everyone online everywhere it matters at all time. They want to strip anonymity from computing.

Apple and Google can now credibly claim to governments to have nearly ubiquitous computing platforms that they can guarantee do not run any software that is not approved or antithetical to the goals of authorities. This makes the device safe for storing things like government IDs. OSs and Browsers will be required to present these IDs or at first just attest to them.

Before posting online, renting a server, using an app you will have to idenitfy yourself using your phone or similarly locked down PC (i.e. mac).

The introduction is under the guise as always of protecting the children. In reality they are removing your rights to privacy and free speech.