>That's because of EU regulation.

Patently untrue: the Micro USB has won over proprietary connectors before the EU regulation, thanks to being cheaper than ever-changing charging & data cables that used to be the norm. That in turn was possible through large volume, and also through well designed standard; it was the third iteration of the plug - after original full sized A/B, and after the somewhat underwhelming Mini USB.

In particular the Micro USB was specced for quite good reliability - including 10,000 plug-unplug cycles, which is quite high for consumer grade hardware, and that was made possible thanks to the sheer experience amassed over years by the USB consortium. Not by regulator's fiat.

That currently USB-C is ruling the market is again thanks to USB consortium's active push, together with large volume of all sorts of devices using it.