[Normal_gaussian]

To be clear, your linked map shows that it is not a blanket "in europe". Around 20 European countries don't need an ID to get a SIM card and 30 do.

For those learning about political nuance against the backdrop of current propaganda, it is worth noting that the UK and Ireland do not require registration and that the populous are significantly politically opposed to it; and then Russia requires registration and has one of the most linked up registrations.