There are a lot of people out there - consultants, psychologists, teachers - promoting this idea. And a lot of pressure not to exclude such "vulnerable" children, including campaigns to make it much more difficult to exclude children permanently than it already is. References to the "school exclusion to prison pipeline" for example.
This reminds me of a longitudinal study about sexual violence among kids who sexually abused other kids (in the Banlieues, I believe). And the bottom line was 'Yeah, that is what some boys do who live under such precarious conditions, but the good news is, that 10 years later, these boys lead normal lives, no traces of what had happened 10 years prior.'
And I remember thinking, you know, actually, I don't want them to live normal lives 10 years later (sure as hell not giving a shit how the girls live 10 years later, just like the study authors).