Why are headings still magnetic?

RST Engineering writes:

Charts are in constant revision for magnetic pole movement. Runway numbers
are reassigned and painted on a regular basis. We can take a pole reversal
and in a week's time have a method of compensating for it.

I was wondering about that. Seems like the airports around me have
had the same runway numbers for quite a while, but maybe my memory is
poor, or maybe I'm in a lucky position with respect to the magnetic
pole.

Why are you posing these old chestnuts here? Can't you google on past
discussions on the matter(s)?

If you don't want to answer or participate, you don't have to.

--
Transpose mxsmanic and gmail to reach me by e-mail.