I know a lot of people and almost maximum of the people on our country gamble online on fiat, whether usd or local currency as it is available in our country and there is no way to increase/decrease the value. Also gambling in our country is not permitted but they do it in any unfair means I also (but I gamble by crypto).
That's why crypto casino will continue to trend because in some countries where gambling is not allowed, millions if not billions of people are gambling online with VPN provided many casinos are not allowing the use of VPN because they have understood that most individuals living in some gambling restricted countries also need to gamble.