Normal rekeying is pretty easy, if you’re careful - push out the core (the “follower” will hold your spring pins in place), dump out the old key pins, swap to the new key, and put in the new key pins, replace the core. Even when I’ve completely screwed it up (pushed the follower too far so the springs came out, mixed all the key pins together so I had to work out which was which, and more) it’s not been more than a 10-minute job.
We once got a $250 lumber budget for building sets rejected (with the rationale that we could just reuse the sets from last year, even though that was a totally different play from a different time period, nevermind completely disassembled). Meanwhile, the cheerleading squad was issued matching tracksuits with their names embroidered, including on the duffle bag it came in. Sports sucks up huge amounts of money from school budgets, and everyone else is left to fight over the rest.