Especially for things like butter. Who measures butter in a cup, America?! Unless you just have vats of liquid butter sitting around, in which case I guess scooping up a cup is pretty easy... But even then, weighing it out is better, I think.
But flour? The difference between sifted and packed is huge, it makes a huge structural difference, and people have genuinely written recipes measured pretty far across the range on density.
I came across an American recipe using cups of butter a week or two back, so obviously not everyone got the memo! Sticks isn't so bad, but I do wish it was all just done by weight. Whenever I encounter recipes using sticks, I still have to convert it because butter is sold in different quantities here.
I agree about flour, it absolutely needs to be done by weight!
I'm saying it's sold in sticks. The recipe is always cups or tablespoons, but 2 sticks is a cup and tablespoons are marked on the wrapper to just cut off.
Right, but in my non-US country, the recipe is in grams or ounces (ie, by weight) and butter is sold in different-sized sticks to in the US. So, whenever I come across US recipes, I have to do some kind of conversion that involves me looking up how much butter is in a cup, how big a US stick of butter is, or how much a tablespoon of butter weighs!