. . . if your making it more complicated for realism it's actually going to get fairly complicated . . .
Hi there. Welcome to Dwarf Fortress.
1. Metal boots are an obvious issue - no flex & you want to be lifting at the heels to put your weight on your toes. Trouble is it's the opposite situation if your climbing in crampons (your better off with a rigid shoe).
Dutch wooden clogs--worst climbing shoe ever? On the other hand, wood-based
sandals might be the very
best DF climbing wear, as the hard, thin base would be great for wedging into crevices where not even a really good leather boot could find purchase.
I *do* want to add crampons (and snowshoes), and have dwarves wear them when appropriate, but that's largely a climate issue.
3. The silk gloves in your example have a problem too, in that they're a smooth material and are going to slide on rock.
You may be confusing silk with satin. Silk, being a filament, is naturally much smoother than twisted, kinky fibers like wool--but a large part of satin's low friction comes from the satin weaving pattern, not the silk from which it's made. But of course, a bare hand would be better than either, especially as dwarves don't mind not wearing gloves.
And if you just want to stop dwarfs from climbing surely it makes more sense to just allow people to turn climbing off on a dwarf?
Well, ideally, Toady would integrate automatic traffic restrictions on climbing, so a dwarf would rather walk 20 tiles over level ground than climb 2 tiles horizontally, or just 1 tile up or down. That way, only the most nimble youth--or thrill-seeking adult--would feel motivated to Spiderman up & down the canyon. The only problem is, that would still allow dwarves to practice Extreme Ironing while in full armor, hence my request to have dwarves check their garments before they wreck their garments.
An option in the INIT file, something like [CLIMBING:DISCOURAGED], would also be good, so that dwarves only use the ability in emergencies (or near-emergencies).