Just imagine how easy things would have been if these 3000$+ computers had the necessary ports built into them.

3 usb type-c and two type-A ports, hdmi out, sd card reader should be bare minimum. A 3.5mm headset jack and collapsible rj45 or very least rj45 to usb adapter should also be included on machines intended for professional use.

Edit: for those complaining about having to disconnect multiple cables, sure you can buy a hub or dock if you want ease of use. But that would still be possible on a machine with its own ports. You don't have to have a working dock to actually use the machine.