This isn’t a crazy notion. My high school, as well as probably thousands of others, staged a crash and EMS rescue to have us all realize the danger of driving impaired. The difference is it was in a monitored setting - I don’t think young children should be exposed to this on an app that everyone is using, without the comfort of their parents. Even in your example, your father showed it to you. But watching extremely graphically violent videos from a young age with zero healthy avenues to process it is a recipe for disaster.