 It's the feeding part that complicates matters. In a similar fashion, all women have chests. All people have chests and breasts because those are interchangeable terms, which is why changing the term is superfluous and pointless. All you've succeeded in doing is making it sound weird. I mean, it wouldn't be technically wrong to say that you went to Popeye's and ordered a bucket of chicken chests, but it sounds weird, and there's no reason to say it. A chest is a breast is a chest is a breast, okay?