>>2056517OP here, disc brakes are actually superior, unlike electronic shifting. They aren't any more complex, they are far more reliable, require less maintenance, don't care if you taco your wheel so you can limp home with brakes, are MUCH easier to set up (yes, even the single-pull mechanical ones), and nowadays aren't even that much more expensive than rimjobs (especially in the long term, considering rim brakes eat pads much faster and use, well, the rim as a wear item, how wasteful). MT200s are cheap, ubiqtous and just work. Cheap cable disc brakes are usually bad, but if you don't wanna run hydraulics (for example, for winter riding, or round-the-world touring), you can't go wrong with Avid BB7, tried and tested.
