Why are access layer switches still based on RJ45 connectors and not USB-C?

It Might be the dumbest question here from a person two days into studying for a CCNA

Most client hardware these days does not have an Ethernet port on it. Wouldn't it just make sense to have an access layer switch have usb c connector ports instead of RJ45? Instead of having an adapters and docks and so on. Because that way you can have more than 48 ports on a 1U switch with only usbC connectors?

What am I missing? Or is this question completely absurd?