Nice one! Now, let's view it from a standpoint, if gambling is so evil to the point that it will be very evil/negative to society to the extent of causing harm to people who are not even gambling through those who are gambling, do you think the government will be this silent about it, especially if it has now become an epidemy in the country? In this situation, if care is not even taken, gambling would be abolished in the country, just like the government is fighting drugs which could cause others who are not even taking them to be harmed due to the drugs' influence on those who are taking them. But the situation is not so right now, which technically means that gambling is not as bad as people are taking it, if not for the irresponsible acts (in finances) associated with gamblers.
It is this simple, even if there are a few people out there that will ruin their lives because of gambling, the truth is that gambling brings so many benefits that governments are not going through the trouble to ban it, after all just take a look at Las Vegas, that is a city that exist exclusively because of gambling and now it has become one of the most visited touristic spots around the world, despite the fact that now you can gamble from your phone, showing how powerful gambling can be and the great benefits it offers to society as a whole.
In my previous comment on this thread, I did emphasized on the fact that gambling is not, and can never be bad to or for the society generally, but can only be bad for or to individuals depending on how the go about their gambling activities.
And talking about the government and why they are not banning, or haven't banned gambling, gambling is not a bad thing for anyone to engage him or herself in, in fact, gambling is one of the top industries that is generating alot of money for the government in the form of taxes from the casinos; as well as winning gamblers, this money is used to bring in new developments to the country by the same government.
And besides, there are a lot of other things that a lot of people engage themselves in that is morally bad, that is harmful to the society in general, and the government have not banned such activities, so why should they ban gambling that is not a bad thing to the society? Example of the activity that is morally bad, to individuals and society in general is..
1. Pornography
2. Sex workers (sluts)
Etc.
This are things that are distroying individuals and societies in general.