The EU didn't mandate micro USB. It was a voluntary standard and it considered a manufacturer to be in compliance if they shipped an adapter (which is what Apple did). The fact that it was voluntary and allowed adapters is why USB-C managed to take off. Also it took until 2021 before the EU decided they needed to change the standard.
They did and (surprise!) we aren't.
https://www.slashgear.com/micro-usb-formally-chosen-as-cellp...