There no need of ban if the purpose can't be achieved completely in my opinion, those nation that happens to ban or put rigid restrictions may lack some understanding of IGR because many citizens will still have their ways of scaling to the gambling, the money in gambling is very huge that a government can make a good revenue and still use it on the citizens to improve their life if government with good policy utilize it well as they tax.
The fact that they’re even thinking of a ban just shows they can’t regulate the market properly anymore. And they probably don’t realize that banning casinos won’t stop gambling, it’ll just push people toward unlicensed ones, which is way more dangerous.
Unless you're a country like China that has full control, banning casinos won’t really work. It won’t solve the problem, it’ll just make things worse.