Is it possible that the casino management courses may be allowed to be studied and taught in countries or regions where gambling activities and casino businesses are banned?
If its offline courses, its unlikely, but if it's online courses, of course there are many platforms that offer this. One specific is this platform:
https://igacademy.com/courses/online-casino-management/.
There are many more platforms; if you are diligent, you will find more on YouTube and in articles. Your location is not an issue when it comes to online courses as long as you have the internet.