I’ve lived in UK, Europe, and the US and I don’t really see a problem with either system. The 120V system is perfectly sufficient for most cases, even refrigera

I’ve lived in UK, Europe, and the US and I don’t really see a problem with either system. The 120V system is perfectly sufficient for most cases, even refrigerators and other large appliances. I suppose the one advantage a 220V system has is that you can put a stove or dryer anywhere, and you can run certain appliances, such as steamers and irons with way more power. On the other hand I find the UK’s plugs to be comically large compared to the US’s petite counterparts. Some European houses even have a few 3-phase 380V outlets for heavy duty equipment, which would be exceedingly rare in the US.