USB-C has been designed so that the male part is less resistant than the female part. This way, the connector on the device will see less stress and should last longer.

Obviously they won't be last indefinitely, especially for a connector used as much as a power input. And I have no idea if all the connectors follow properly the standard regarding materials.

But given the built quality of Apple cables, I doubt we will see the device connector wear before the cable is ripped apart by natural degradation, after 1 or 2 years.