The people living in poverty very very rarely hurt a stranger's children. It's the cops who show up and take them, absolutely destroying their sense of security and growing independence.
National studies show more violent crime happens in poor areas: https://bjs.ojp.gov/content/pub/pdf/hpnvv0812.pdf
For example, despite all the worries about kidnappings, there are only a few hundred kidnappings of children by complete strangers every year.
As an aside (and separate point): The data in there was all 12+. I'm gonna be the one to come out and say it: if the hypothetical reality is the teenager is growing up in a hell-scape world of death-match-violence then unfortunately it's one of those cases of "nows the fucking time to get out there and learn how to (gradually) adapt to the hellscape while we try to make it better." (which honestly is a little what driving feels like when you turn 15)
This btw is the correct course of logic since the burden of proof is on the asserter.
Therefore the correct course of logic is to dismiss your assertion.