There is a cost involved in providing school-based mental health services, of course. But consider the cost of doing nothing. Without supports, young people are left alone to figure out how to overcome the effects of exposure to trauma. This could negatively impact their ability to finish school, learn a trade, manage their emotions, live a healthy life and be a good provider for their own children. We also know that their risk of chronic disease across the lifetime will be much higher. That means society will pay more to help them as adults, whether through social services, treatment for substance use disorders or mental illness, medical care and other supports.