Besides, it's not easy to convert from grams to spoons on the fly because different ingredients have different densities, and the density of powdered material is different from that of a solid block. The same problem arises when converting spoons to grams. The worst is when you encounter a recipe that has been converted from spoons to grams (or vice versa) using the wrong densities. It's like encoding an image in JPEG. Every conversion reduces the precision of the numbers.
that's even worse. if i need specialized equipment to get the right measurements then where is the advantage? with metric units, a scale and a jar with markers for volume is all that i ever need to do all measurements in the kitchen.
what's more, both the scale and the jar can handle imperial units as well.
The worst is when you encounter a recipe that has been converted from spoons to grams (or vice versa) using the wrong densities
if the measurement is done at a specific density, and i redo the same measurement at a different density then it's going to be wrong no matter what. but if that is a problem, then volume is the wrong measurement to begin with.
this isn't even about metric vs imperial, because the same problem applies if the spoon is converted to imperial weight.
spoons need to be converted to mililiters or fluid ounces to avoid that problem.
this is not an argument to keep using spoons as units.
No, measuring teaspoons and tablespoons aren't usually much larger than tea/tablespoons for use at the table.
They typically have shorter but wider handles and different shapes (often semispherical, but there are others).