They do it because the payday loan places let you cash it two days early and they're out of money and have no credit. Makes the poor poorer, all the time.
Can you point to a single consumer financial transaction where two days late matters more than the interest a payday lender charges? Utilities don't get shut off in two days, cars don't get repossessed in two days, landlords can't evict that fast
If you have a card. Which people who go to those places usually don't.
If you have a job you can get a high interest card