The biggest problem is Apple. They've removed USB-A from their laptops close to 5 years ago, because USB-C is the future. They've also removed the headphone j

The biggest problem is Apple. They've removed USB-A from their laptops close to 5 years ago, because USB-C is the future. They've also removed the headphone jack from iPhone; however, the USB-C is still nowhere to be found. Why?! The end result is that we can charge a MacBook with a ThinkPad power adapter, but no longer have MagSafe; have been using ugly adapters on MacBooks for close to 5 years now -- with no end in sight, yet still cannot use the same headset for both a MacBook and an iPhone. Ironically, from this perspective, Android is now more compatible with a MacBook than an iPhone is -- my USB-A headphones with the USB-A-to-USB-C adapter can be plugged directly into either my Android or my MacBook, without any extra adapters, other than the permanently-attached USB-A-to-USB-C one. (Of course, the opposite isn't true -- and the USB-C adapter for the headsets from my phone doesn't work in a MacBook, but at least the opposite way everything works.)