Instead of outrightly banning gambling, how about if the concerned countries officially include gambling education in their academic syllabus, just like sex education is taught in schools. Gambling education will teach the young ones the dangers of gambling and promote moderation in gambling. Will this not be a better way to handle the gambling cases?
I think instead of focusing on gambling addiction, schools should have like a mandatory subject talking about the dangers of any kind of addiction which teaches them to do things in moderation.
Having a designated subject primarily for gambling addiction only can be both a boon and a bane- it can be a boon where it can teach students to be more careful with their decision into not trying gambling at all; and it can be a bane when curiosity sparks with these students for them to try it.
In conclusion, I highly recommend that in the early levels of education, students are being educated on the dangers of being addicted to a certain activity so that it can be an all encompassing lesson that applies to every addiction.