Anything older than 5 years ago has the odds of being A, B, Mini A, Mini B, Micro A, Micro B, etc.
C is the standard. If you need legacy support, there’s hubs and adapters. No need to perpetuate legacy ports. I’d love a serial and a parallel connector - there’s plenty of modern industrial gear still using them. But we do that with C -> Serial adapters.
A device has a limited number of ports. Would one rather two USB-C, or one A and one C?
That A port will have diminishing value if one intends to use the device for 5 to 10 years and increases the probability someone discards the device early given the limited number of modern, high value ports.