That between blockchain and casino (game) it is 2 different elements, blockchain is a non-centralized place to receive and send, of course its scope is wider and its designation is for real transaction flow.

Whereas casino is the art of playing even since ancient times and maybe if it is currently wrapped in blockchain technology so that it can be converted to crypto assets it is a great progress and opportunity. Actually, it could depend on the casino developer, but this is a game and it could be a marketing strategy, unlike crypto assets in wallets that can get apr /apy / roi from stakes or hodl events.