"A typical working parent spends just 19 minutes a day looking after their children" (19 minutes - how long working parents give their children).
We can often associate these acts of violence to the need for people to finally be noticed. Many parents are working longer hours(19 minutes - how long working parents give their children), devoting less time to their children; as a result of this, kids look for support in their schools. But schools nowadays are far too big to provide this needed support to every kid. The student to teacher ratio is increasing and schools are becoming overpopulated. This increase in size has had a negative effect on the students, and can often lead to more students being susceptible to depression or other mental disorders.