Or the 17 year old has just been brain-washed in public school that he should seek out the government to solve all the problems in the world. He'll soon find out that the "system" more closely resembles a meat grinder.
More likely, the family situation he and his brother were in was a literal meat grinder, and he'll be glad he got himself and his brother out of it. If the younger boy was really seriously misbehaving, and the punishment he was getting was appropriate, the older boy would have little reason to call police. This father has raised his 17 year old to fear him and to think the government is a better source of protection and authority than his father. Nice job < /s>