Earlier quoted context omitted.
Well, I'm of 20th C. origin—not 19th—and the first electrical things I played with as a young kid were electric bells, buzzers, batteries, flashlight globes and reels of bell wire—lots and lots of it. (Experimenting with such items wasn't an unfashionable activity when I was a kid.) Bell wire, which usually came in the form of two single-stranded copper wires twisted loosely together and insulated in red and white PV…
Living in Europe, I’m one of the rare millionaires so I have a house, 150m2 (on the Côte d’Azur, I admit it’s expensive), but even for me, thinking of “a bell for mother to signal us to come to dinner” is the thing that belong to the times when energy was unlimited, and therefore house sizes and taxes on inhabitable square meters. It’s not that we do have bells here, but we don’t have the square meters anymore.
Well, practically so. My mother had a massive copper (I think) cowbell at the bottom of the stairs to signal us. All it required was the muscle energy to give the 2-kilogram monstrosity a little shake.