How old do you have to be to work at auto zone?

Old enough to vote, but not so old so-as to know one darn thing about how an automobile works; remember, you are there to sell parts returned by prior customers that they took off of their car and replaced then returned back to the store, and were put back on the shelf as inventory, because other derps like you didn't bother to check the box (and even if they did, they probably couldn't tell the part was the old broken part anyhow) - not fix a customer's car problems. Get back to work, wage slave.