Even in the tiny rural community I live in, cashiers are being replaced by automated systems in large stores. Smaller stores will probably continue to have cash

Even in the tiny rural community I live in, cashiers are being replaced by automated systems in large stores. Smaller stores will probably continue to have cashiers until forever, but we're not talking about 100% of cashiers going away, we're talking about some percentage of that. If half of the available jobs in a market vanish, that will have significant and devastating effects, regardless of how they're lost. Especially for jobs like cashiering, because there are limited places for cashiers to go, and this problem will eventually effect lots of jobs that have no up front professional training requirement (and perhaps many that do, but that's its own discussion.) It's only a matter of time, for example, until Domino's pizza production is automated. The only reason we haven't seen this yet is because hiring humans is cheaper than solving the complex automation problem this presents. But technology continues to get cheaper. When that swings the other way, your pizza will get made by robots. Pizza delivery by robots is already a solved problem, just waiting for the costs to skew the right way. In short: at the speed at which technological problems get solved, it's unlikely we will have even adequately discussed the ramifications of the problem before it arrives on our doorstep.