It's weird about wanting the boys to clean in return for the boards. I'm not necessarily opposed to that, but why embrace of a philosophy of "you don't get anything, except as some form of payment," as some beneficial "therapy".
Personally, I think homeless kids, who've no doubt been exchanging themselves sexually in return for kindness, or money, etc, are quite aware that "nothing is free in life". Why is ingraining this deeper in them somehow "therapeutic"?
In reality, genuine relationships of love are not formatted on the principle of barter. These relationships - the ones that non homeless kids take for granted- are the only "therapy" that has been shown to be beneficial for a kid.
Must everything in life be reduced to some capitalistic exchange? It seems that this "therapy" is, yet again, about controlling someone: i.e. teaching them to toil in return for something, and that something done merely out of kindness, love, or morality is too good for them to expect.
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