>>3089590Normal minilabs can not develop non-C41 black and white film.
So let's say you're an arsty-fartsy 20-something who wants to look cool, so you want to shoot black and white FILM because digital is passe and color is no longer hip.
You have no darkroom access, skill, nor knowledge.
You try a roll of Tri-X but the local minilab says they can't process it.
Somehow you find out about the C-41 film and viola!
You are now hip, retro, and cool.