Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Are cashiers required to check a credit card for a signature in the U.S.?
I'm not sure if they're required to do so, but I have been neglecting to sign my cards for some time now.  If they do check, that triggers an ID check, where they'll find my signature.  I know of at least one person that writes "see ID" instead of signing their cards.  He began that practice over 10 years ago.