Good idea, indeed my country there are still some people who do gambling with fighting chickens. But I'm not sure they'll switch to this model. The reason is that they don't understand technologies like NFTs. Need introduction or socialization. They prefer cash to be received directly without intermediaries.
Maybe for gamblers who are tech-savvy it would be a good solution. But for traditional people, it seems that they don't want to know and learn.
to be honest, I'm not too interested if this kind of gambling exists in casinos and it doesn't seem like there's much demand for it