This is actually amazing how things have change during last 10-20 years. When I was a student, I cant say that I was 100% focused on a study, but I barely paid attention to gambling. To gamble I needed spare money, but my mind was busy thinking where to get or earn money in general, because I was sort of in «adults life» and wanted better closed, notebook, mobile, car, own flat and etc. However, I think that current situation with students and gambling is pumped. Problem isnt that big. I think that most students are busy thinking where they would work after university with a large salary.