Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Are cashiers required to check a credit card for a signature in the U.S.?
It depends on the business. Some ask for ID and check against the signature (rare); some ask for ID but barely glance at it; some check just that it's signed (also rare); some ask for me to input my ZIP code on the card reader (KMart); and some don't do anything (most common). What they do doesn't seem connected to whether I put the card in the reader myself, or hand it to the cashier for them to scan. It does seem silly to check IDs, etc., as there are places such as gas stations where I never even see an employee, and can spend just as much there as at WalMart, KMart, or the grocery store, all places that tend to do more checking.