I don’t think any sane person would say gravy and curry are the same category.
Why? Culinarily*, curry and gravy are quite similar, and serve similar functions. Obviously they don’t taste all that similar, but I don’t think that really matters much when you consider the vast variety of flavors that curries come in.
And actually, now that I think of it, Japanese curries do share quite a few flavors with a Western meat-dripping-based gravy. In fact, I’m pretty sure the directions on the packaged* curry cubes I get from the Asian grocer refer to the curry sauce as “gravy”. So yeah, actually, plenty of sane people put curry and gravy in the same category, for solid reasons.
Why? Culinarily*, curry and gravy are quite similar, and serve similar functions. Obviously they don’t taste all that similar, but I don’t think that really matters much when you consider the vast variety of flavors that curries come in.
And actually, now that I think of it, Japanese curries do share quite a few flavors with a Western meat-dripping-based gravy. In fact, I’m pretty sure the directions on the packaged* curry cubes I get from the Asian grocer refer to the curry sauce as “gravy”. So yeah, actually, plenty of sane people put curry and gravy in the same category, for solid reasons.