Why should they have put it on the iPhone? People keep saying that, but nobody's actually given a good reason. It's not like you're going to be plugging any of your Mac peripherals into your iPhone. The only actual reason anyone seems to have is "so you can plug your iPhone into an Android charger", but that doesn't seem very compelling to me (do I even want to trust an Android charger?).
Do I want one cable to charge my old macbook, one for my iphone 7 work phone, and one for my private pixel xl, or do i want one cable that can charge them all (the new macbook and the android phone now works)? or maybe 2 for a spare? And speaking of spares, I always have one extra at home to replace any that get broken. Having the same standard everywhere means I need only one spare. Instead of one spare per type.
> do I even want to trust an Android charger?
I don't know what this means. I'm reading this as "Do I even trust a USB-C charger", which you can safely do if you buy something that adheres to the standards. A lot of chinese knock-offs don't, but the point of standards is that you shouldn't have to care.
USB-C is supplanting microUSB ports just about everywhere, just like microUSB supplanted miniUSB. I don't understand why the iPhone isn't using it other than to allow people to use their iPhone 6 peripherals.
Lightning was first, there is a vibrant ecosystem in place around Made For iPhone accessories that use Lightning that a lot of existing iPhone users already own, the Lightning port and connector are smaller than USB-C which is probably useful in a few places (I saw someone suggest somewhere that the Apple Pencil wouldn't even be able to fit a USB-C connector), someone else also said that Lightning was designed to support the weight of the iPhone in a dock configuration but USB-C probably wasn't, etc. And there's not really any benefit to switching to USB-C besides being able to re-use Android chargers, which isn't something that Apple or most of their customers particularly cares about.