CONFUSION at hardware store, I wanted 'chick grit' and they kept saying over and over 'pullet or hen' ?

Me: "I need a pound of chick grit please."

Staff: "Pullet or hen?"

To me, this is like me going in a department store and saying "Where are the baby clothes" And the staff replying "Teen or adult?"

Needed grit for my 2-week-old birds (as far as I am concerned they are "chicks" and being male and female and also tiny, they are not yet and some will never be "pullets"). What they called "pullet grit" was indeed fine enough for them.

But in researching this, it seems that some in the industry call "pullets" female chicks from 1 day onward.

What does everyone use to order fine grit, for "chicks" or "pullets" ?