This Comic's Cast:

Almost as much schooling as you need to become a doctor.

This comic really just plays with the trope that all wizards end up living (and teaching) at whatever school they were trained in. Recall Unseen University in Ankh-Morpork (Discworld books). All the teachers there were wizards. If you're a wizard, you live at the school, learn at the school, and teach at the school. The only wizards seen outside the school are the failures, the ones that couldn't really cut it as a wizard.

Also, for whatever reason, my spell check has Ankh-Morpork. Mind you that I didn't program the spell check to have that, and that there are a lot of common words my spell check doesn't recognize (like, for instance, Discworld). So why does it know Ankh-Morpork?
 
    

When evil spreads across the land, and darkness rises and the monsters roam. When the creatures of the night make beautiful music, and the things that go bump in the night go bump with greater enthusiasm. When the world is in peril and is in need of a hero...

These guys are, sadly, the best the world can hope for. These are the adventures of the heroes of CVRPG. They mean well, they try hard, and occasionally they do the impossible...

They actually do something heroic.