You still need to hook up stuff to a computer - mice, keyboards, those weird 3D-mice our CAD people use, printers, and these days even displays are all attached

You still need to hook up stuff to a computer - mice, keyboards, those weird 3D-mice our CAD people use, printers, and these days even displays are all attached to USB ports. And since the ports USB replaces have mostly gone, there is little alternative left. At work, we keep a couple of power-socket-to-USB chargers around, if people want to charge their smartphone they can grab one. But simply disabling the USB ports on our users machines is not a realistic option at this point.