I don't understand USB type-C connectors
Yes, you don't

So the problem is that device manufacturers are not adopting the TypeC technology because it is niché on a PC, 99% of PCs don't have Type C connector.
So until they start to offer removable cables on stuff like keyboards and mice etc, then I don't see Type C taking over as the choice, because currently it alienates most buyers who cannot use it.
Ask your self this, how long was it before you saw serial ports, parallel ports, and PS/2 ports disappearing from consumer level computer systems, once USB 1.0 started to be introduced? About a decade or longer, is the answer.