Why you need a digital kitchen scale in USA

In American kitchens moment, digital kitchen scales are nearly absent. As they were for the antedating 2 –1/2 centuries. Mugs, still, are cheap and ubiquitous. (I assume your “ graduated measuring jars” could measure in mugs, half mugs,etc.)

When the material is specified (e.g., Each- Purpose Flour), so the viscosity is known, it does n’t matter whether you measure it in volume ( mugs) or mass/ weight (kitchen scales) — you get the same volume of material (Flour).
The only confusion that occurs is that when different accoutrements are used (oat flour rather than all- purpose (wheat) flour), the relationship between mugs and grams is different. So at this time, you generally need a digital kitchen scale.