I'll add another situation here
You can have all money you want to gamble in your hardware wallet for example, and you can travel to the casino's country without have to carry a lot of money
If you win on casino, you'll get all the money in cryptos and again, in your hardware wallet, simple
I'm liking the idea dude. I mean you can just bring your hardware wallet an plug it in and then continue to play. The only downside I'm thinking is that how secure when you exited the physical casino.
There could be some bad actors just waiting for the right target and steal all your crypto once you get out of the casino. There are already multiple reports in fiat based casino. So it will be dangerous as well, specially if you have been identified to have won huge amount of crypto specially bitcoin.