Comment by gnicholas

Sure, I also fast-charge sometimes when traveling. But I have found that USB-C is not available on planes, in airports, or in hotels. So if I want to be able to charge conveniently, I actually would rather have a USB-A to Lightning cable.

But regardless, it sounds like there is no additional speed advantage to having USB-C to USB-C versus the currently available USB-C to Lightning. Is that right? As for getting a bunch of dongles, that's one solution, but means spending more money.