Meanwhile wizards: "BEHOLD MY STAFF OF POWER", "I'm pondering the SPHERES", "KNEEL BEFORE MY MIGHTY ROD".
Jokes aside, that is a culture thing - if my rather tattered memory serves, historically, a lot of magic was pact magic (asking someone else for power in exchange). Necromancy was a little different (before its conflation with "nigromancy" by the church in medieval times) and in its earlier incarnation generally involved a "descent" into the underworld via a gate (of which there were many) and so was almost "adventure magic". These ancient holy sites were venerated rather than shunned and, again memory is patchy here, generally held an oracle (i.e. a witch).
So, fun fact of the day, if you go caving in the right place you're technically a necromancer.