If you live in a state that prohibits gambling then the bank will have to adhere to state law.
I live in California and I can’t use my credit cards to gamble outside of the state.
The timing of this is very curious though, I’ve never seen them post (in red letters!) such a message and it didn’t appear yesterday.
...now with all the Robinhood “short queeze” bank craziness it appears all-of-a-sudden. There’s no explanation of whom they consider “gambling”...but many would call stock trading gambling.