[morshu9001]

USB-C wasn't exactly standard when Apple put it in Macs. Nothing else used it yet, and they didn't have any transition period. Its sole purpose for years was to get adapted to other ports. And if you wanted to use it as Lightning, you basically needed the Apple cable.

[JustExAWS]

You didn’t real need a transition, just USB C to USB 2.0 cords and USB C to HDMI cords.

Unless you had the MacBook with 1 port.

[morshu9001]

The video dongles never worked reliably, especially early on. The USB-A adapters were less bad but still annoying. The end result was that everyone bought docks. Same as how removing jack didn't result in people using dongles, they bought AirPods.