Vic Smith actually said:

I've never changed brake fluid in 50 years of car/truck ownership.
So it's not "normal" to me.

We're delving off topic, but if you live in a wet or dusty clime, your
brake fluid will "suck up" water and dust, which, on a 10-mile long
mountain pass, might make a difference in not so good a way.

Even if it doesn't, the alcohol in the fluid will slowly erode your gaskets
in your master cylinder (and slave cylinder if you have a hydraulic
clutch).

It will likely still work all dusty, wet, and black; but it won't work as
well if you live in the mountains.