1. They have, new Apple laptops are now using USB-C.
I don't think you understood the question.
I don't think you understood the question.
But what is the alternative you'd prefer? They still ship with that massive DVI connector?
Frankly, one they stopped using an apple-proprietary connector (ADC, which was basically DVI + USB + Power in a single cable, 14 years before USB-C) in 2004, there's not much to complain about.
Since they dropped ADC, they've used combinations of DVI, Mini DisplayPort, HDMI, Thunderbolt1 & 2, USB-C, and now Thunderbolt 3.
Those are all industry standard ports. Some are influenced by Apple, but none are limited to Apple.