[Bud]

1) USB-C doesn't fit on the old iPad mini case design. The mini is used in a lot of embedded applications where keeping the exact same form factor is important.

2) It's incorrect to say that "now" some iPads will have USB-C and others Lightning. That was already the case. This simply continues the status quo.

3) It's also incorrect to say that "users" in the Apple ecosystem will "need" a dongle. That's only the case for those with MacBook Pros. That's a minority of users.

4) You also got it wrong about the iPhone. You don't need any cable at all to connect an iPhone to a Mac; they connect wirelessly. For those who want to do this, the majority of users are still on Macs with USB-A.

[licyeus]

All modern Mac laptops are USB-C only. The MacBook Airs were the last holdout and became USB-C only last year.