If you ask me, I do not think government should do it because it is against people's freedom as I believe most gamblers will act against this kind of regulation and will start to find alternative casinos to play once the limit is reached.
The only way such regulation can work and different class of gamblers can cope with it will be either of two ways. it is either every gambler will be made to set for himself how much he can not go above which will be more like a strategy that helps protect the gambler from over risking his gambling budget, with that, it is going to be easy for people to willingly do it. an alternative option will be that based on a users income and spending habit, the system can assign how much it feels the gambler can use maximum for his gambling every day. certainly, there is going to be some level of limitation with such strategy because the system can be wrong with with their analysis and limit some gamblers from gambling with a certain budget which against their freedom.