This is all kind of old tech though. Mice, keyboards and printers have been wireless for ages. Yes, I realize there's a gamer population that prefers wired peripherals for the latency, but some gamers only play on CRT monitors for the same reason - it doesn't make them not outdated tech. If I started a new job and they gave me a wired mouse I'd think they hate me.
The storage solutions you listed (thumb drives, hard drives, optical drives) aren't used daily by most people, and are all widely available with USB-C.
> Mice, keyboards and printers have been wireless for ages.
Doesn't necessarily mean they use USB-C though. Logitech's Unifying receivers are still (sadly) reliant upon USB-A, although someone modified one of them to use USB-C instead[0] :-)
Can you show me a decent optical drive with a USB-C cable? Because I can't find one.
Also, yes many mice and keyboards do come with Bluetooth. But all of the ones that require dongles for wireless are only USB-A. No USB-C Logitech Unifying/Bolt receivers.
All of my caddies use that weird micro-USB plug that can do USB-3, which is cool. In theory it'd be easy to convert that to USB-C... just change the plug on the end, or just make both ends USB-C. I typically find those cables to not lock into the port very well.