Technical reason: A USB-C device must be driven by a USB-C 'uplink' port in the PC. Since your PC does not have a USB-C port, no USB-C device can connect.
Therefore, I'd suggest adding a USB-C card such as a $21 card$19 card from NewEgg, or a $25 card from Amazon. Both connect to PCIe slots on your desktop motherboard, so please check that you have the necessary card slot available.
If your PC is a laptop, there's no solution for it, as the ExpressCard expansion card slot does not support USB-C.