If offline casinos implement such a system, it will really be wonderful. And it will be really beneficial for the casino as with all the winnings, if they hold it long term, the profit value increases automatically as the price rises of crypto. Hence, it is really something that should be implemented. I think Japan might have some offline casinos that accept crypto.
Which can be a good start to any offline casino bringing new ways of payment system, it will not that long for us to see that establishment like casino house will offer this same with how we are expecting that big businesses will also adopt and embrace this chain.
Bitcoin is also a good asset in the other hands if the owner of the casino aims to hold there's a lots of opportunities same with what you have said.
Bitcoin holders are going to support this concept a lot and even those who are not using bitcoin would also be able to find out about this amazing currency. In this way, bitcoin users will increase in leaps because gambling is a game which is played all over the world and people love it. Holing bitcoins that you win in gambling can easily make you rich.