Cashier at Walmart is not a zero-skilled job. The incumbent needs to: * show up * not be high or drunk when showing up * adhere to a schedule * read * fol

Cashier at Walmart is not a zero-skilled job. The incumbent needs to: * show up * not be high or drunk when showing up * adhere to a schedule * read * follow instructions * not cuss out his boss or customers * count money * not steal money * operate a computerized cash register A large number of homeless probably could not do these things.