Having lived through the initial rollout of USB, I remember a period of time when a PC would come with a few USB ports, printers had parallel and USB ports on them, mice came with USB to P/S2 adapters in the box etc. so there was a transitional period. Everyone seemed to be onboard with the idea that USB was the future. Within a decade, P/S2, RS-232 and parallel ports disappeared from PCs.

That same drive to move the fuck on and complete the transition doesn't seem to be there this time. Mobile device manufacturers have adopted USB-C as entirely as they can because of their weird obsession with making devices uselessly thin. Peripheral manufacturers really haven't; displays are still HDMI or DP, Logitech outright refuses to make a USB-C Unifying Transceiver..."dongle life." And desktop PCs have relatively few USB-C ports meaning if you do manage to collect up USB-C peripherals for your mobile life, they're a pain on desktop.