Yes, of course the iPad uses WiFi to connect to the internet. That has nothing to do with the prohibition of wireless printers and routers in college dorms. Colleges have their own exclusive wireless networks for students to use for computer/mobile device connections. But, unlike computers and mobile devices, routers and wireless printers are prohibited because they create a constant WiFi signal that interferes and competes with the official campus WiFi signal.
So, yes, I can “go somewhere” else to print. Or scan. Even though scanning is huge part of my digital work and the ability to do it in my room would be incredibly time-saving.
My hope was that I could use some sort of USB-C adapter to create a corded connection to a printer/scanner. If this is not currently possible, I don’t see why Apple could not make it possible in the future. There are many places in the world with exclusive WiFi networks, where physical connections to printers and scanners should be possible.