>>1856779Basically, this.
Steel bends out of shape before it breaks. Steel is very stiff, it's easy to work with, and it's been around for fucking ever.
A carbon fiber part has properties based on which way the fibers are arranged. it's not just a bunch of tiny identical subunits like metal.
In aviation there's a cult of fucking morons that worship these steel wire biplanes, because they bought them in the 80s and they can't afford composites.
The fact is that steel is easy to work with, easy to weld, it's almost like the free software of materials, even though that's absolutely not true, once you get dementia your brain turns to stone and you can't learn how to do anything new, so you just stick to what you know.
Also, dentists have a lot more money than you, so most carbon fiber forks are designed to be light and not have 3x excess strength, whereas is mandatory with steel (because it bends at 1x).