iPad and iPhone USB printing
Currently printing is only supported over WiFi with AirPrint from iPad and iPhone.
For university students on university WiFi, this is unusable as WiFi printers cannot be connected to the school's network.
Even the global universities WiFi network, eduroam, explicitly does not support WiFi printers joining the network.
So every student in the world in a dorm room or student accommodation using university WiFi cannot print using their own printer from iPad or iPhone.
Clearly this is a choice by Apple, rather than it being physically impossible.
It also appears that Bluetooth printer connectivity has been disabled in iPadOS and iOS so that's not an option either even in third party printing apps.
Please, please, please add class-compliant USB printing.