You might be right on all those points. If you look at interactions with the justice system it is skewed towards poorer demographics, but as you say, those are not the target of the scam as they lack the significant funds required to pay.
And in poor communities it is expected that your kids will get into trouble, sometimes even celebrated or encouraged by the parents (especially if gang membership is involved), so I can see that the middle-class or above are the ones that would be easily shamed into signing up.
And in poor communities it is expected that your kids will get into trouble, sometimes even celebrated or encouraged by the parents (especially if gang membership is involved), so I can see that the middle-class or above are the ones that would be easily shamed into signing up.