I agree with people with Vaccine is not 100% fully immune to the Covid 19 virus, in fact, I think there is just a 94% effectiveness in any person that is vaccinated people that are vaccinated can still be a carrier of the virus so it is still unsafe to implement a no mask Casino for gambling goers, this could only cause wrong understanding of the situation we are now if we are not the ones preventing the pandemic to boom again I think this kind of establishment will surely cause another surge in people getting infected.
Preventions is better than cure, there's no 100% assurance that those who already vaccinated are free or safe with the virus.
It's still better to continue the protocols especially with close doors in house casinos, we don't know who's the carrier still and not because certain person already vaccinated means that he's can't be a carrier.
Don't put our guards down, it's still wise to keep your safety measures, equipped yourself as always.