The government will not be allowing these casinos to function at these times,
Yes because there is no social distancing in a casino.. and it's not fun if they'll impose that kind of measure just to open the business.
I guess they should really consider making an online casino or gambling site so they would continue to earn a profit and continue to give their workers their expected wage or payment. They are the ones affected by these and not really us gamblers.
They could but they can't expect they will easily get gamblers online, there's a lot of casino in online that in physical world so they need to build their reputation, do some promotion to attract gamblers and slowly they will get if they will maintain a good reputation and of course offer fun games.
it won't be easy for them really, they should have made a kind of contingency action before the pandemic happened, that is required in a business so the business will be able to continue operating.