why don't you contact the authorities because even in countries where gambling is legal, children are strictly prohibited from gambling because they are still at school, if children continue to be allowed to gamble then their future will be ruined, they will not have time to finish their schooling or even apply to a job.
The level of children's addiction to gambling will certainly be very difficult for their parents to control if it is not controlled from an early age by their own parents. I also don't really agree with reporting things like that to the authorities if they can still be handled on their own for the common good, because children who are still at an early age or still at school to gain more knowledge, of course there is really no need to take part in gambling because They'll definitely have time to understand more about gambling when they get older or when they start working for themselves and making money that they can put aside for themselves.