Hussar
Legend
Sure. 100% agree, but the knowledge of how to do something is very different from having the means to do so. Mining ore, refining that ore, and turning it into finished products are all steps that require not just knowing how to do so, but a significant investment in time and rather specialized equipment. Much of that equipment would be incredibly difficult, if not impossible, to move. Stretching the time a nomadic group stays in one place (cough dwarves,) or involving high fantasy magic could circumvent those issues but would create others.
I think magic is probably the bigger issue here. It's easy to refine ore. I simply ask the ore spirits and give them an appropriate gift and the ore is refined.

Hunting to extinction is generally not a huge problem. I mean, in the real world, we managed to be hunter/gatherers for tens of thousands of years without too much difficulty, so, it's not like it's impossible. And, let's not forget D&D fauna as well. There's all sorts of really fun stuff you could live off of. Fire Beetles would be a MASSIVE change to the world. Beetles that large? Fantastic food source and a free source of light as well.Agriculture is another tough one, as I mentioned before. Historically, food production spiked when humans settled and began farming. Without traditional farming how do these nomadic cultures compete with settled peoples? Again, magic, sure, but what about something more unique like sowing crops that require little upkeep before moving to a new location that is ready to harvest. Do that in enough places and you are moving every 3-4 months and constantly harvesting and planting. In theory, that gets you a constant food supply. Since you are working with smaller crops storage remains minimal, and thus portable.
Edit: the roving farmers would also need some way of protecting their crops from animals. Defensive measures might be difficult, but aggressively hunting large herbivores to the point of near extinction is entirely plausible. Some sort of guardian predator would be more fun, and less likely to piss off local druids, but conflict is fun.![]()
It really would be nice though to see a D&D world that wasn't just the bog standard fantasy world again.