Is it possible that someone could use their credit card to charge but not for a cash advance?
chris c asked:
This is for a story. I'd like the character to be able to use his credit card to charge something, but not be able to use it for a cash advance. Is that situation possible?
Thank you both very much!

Yes, that's up to the card issuer.
Yes, that is up to the credit card issuer. Some people may not qualify for cash advance on the cards.