Honestly, the main issue i see with USB-C is that it tries to do too much. On top of the "regular" USB features, it also adds high-power power delivery to both

Honestly, the main issue i see with USB-C is that it tries to do too much. On top of the "regular" USB features, it also adds high-power power delivery to both devices and peripherals, analog audio, MHL, Thunderbolt, and DisplayPort, and i probably missed a few. Sure, having a single connector might seem easy, but i'm afraid it will result in a plethora of devices and cables which physically fit, but do not work with or will even damage your device. That fancy usb c-to-displayport adapter you bought for your laptop? It won't work with your phone, because that requires a mhl-capable adapter which outputs hdmi, but don't try to use that one on your laptop, because your laptop doesn't output mhl, so it requires a regular adapter. Never mind trying to explain to someone that yes, usb-c cellphone chargers are indeed compatible between all cell phones, but laptop chargers aren't interchangable. And even headsets suddenly don't seem like such a great idea anymore: a headset might have a usb-c connector, but will it talk analog audio or usb to your device, and which one did your device support again? And why do all my adapters stop working when i try to use a usb hub? I'm all for innovation, but even ignoring all the potential issues with backwards compatibility with legacy connectors (3.5mm is on everything!) and the limited number of ports, it seems like we're in for a whole lot of pain for a very limited gain and it just doesn't seen to be worth it.