The uniquely US problem is poor people having terrible diets, but lack of fibre for non-poor people is a thing all over the world aside from maybe like, japan…
i’ve personally benefitted greatly from just opting for whole-grain versions of things like pasta, much better poops now.
there are teensy tiny municipally-owned apartments available in a city near me for like 200€ per month and i’m absolutely planning to get one if i ever get an income, they’re so smol that the “kitchen” is a recessed wardrobe with a sink and like 2 hotplates