Young students who get pocket money from parents shouldn't think about gambling. In poor countries parent can't educate children with out suffering. If they start gambling they'll betray their parents it isn't fair they've got to graduate & help their family.
Those who do anything unfair are not aware of that, and they do not think about the things they are doing. If they are aware that it is unfair, then they would not engage with anything like gambling and/or drinking. Actually, they usually do something that is not fair, but unconsciously.