I have said that many times already, instead of educating people about gambling, investing, importance of spending on the things they need why not just educate themselves about money in the first place which is the root cause of all the other thousand problems we can address today.
You're correct but don't you think teaching them this things individually will help them to understand them better as they'll learn them one by one than when you combined everything in Money management to teach them. Most of this individual aren't financially educated and they're newbies when it comes to the subject of money. To avoid confusing them or giving them too much information that they can't process, teaching them one after another might have more success.
The countries that prohibit gambling has a reason for doing that, it might be religious reasons just like the Muslim countries not permitting it and teaching them gambling education will be of no use because the government wants them to have nothing to do with gambling because gambling can be very addictive when done wrongly.