So you'd like a casino to issue a stable coin?
That would require big money just to support the peg and then additional money on top of that to have the bankroll. I don't think it's ever going to happen because if a business had so much money to launch a stable coin and keep it pegged to the dollar in a competitive market they'd be better off launching another casino like primedice did with stake. It's more profitable than a coin and a coin can fail on its own which will damage your casino business. Nobody would take that risk.
Having Bitcoin and other top altcoins are just enough to do their job or something that you would really be minding on accumulating from players and not to make use of something that is stable.
Im not really seeing that much of this idea to have been applied on current casinos that we do have today which does simply shows that this idea isnt really that effective at all.