Don’t get me wrong. Apple removing audio jack was the biggest facepalm in smartphone history. And you can thank it for not being able to make an upgrade without sacrificing audio jack (and SD card too :/). But USB-C is getting standardized everywhere now (laptops, smartphones, etc.). What makes USB-C earphones not worth the switch?
Just got a 1981 Sony EQ off eBay, made in Japan, all that! How the hell would I ever adapt USB-C?! I’ve got fittings in the drawer for all things 1/8", didn’t even research what I needed to get this thing integrated with my stereo. Also, it has another gold standard, the 3/4" jack! I can cobble something together for free. Oh! I can also roll my own 1/8" jacks and wiring, certainly can’t “create” a USB-C connector.
OP is stuck thinking digital applications. 1/8" is perfect for analog use cases. USB-C is excellent for charging and data transfer. Very different use cases.
(Disclaimer: I’m no sort of audiophile. Just and old guy with vintage gear, going with what works.)