Why should the Curtis brothers continue to live with Darry and not be placed in foster care

In my opinion, families should be kept together whenever possible. Darry has taken on the responsibility of working and raising his younger brothers. He quit school for them.... he loves them, and although he's young..... he wants what's best for them and doesn't begrudge the freedom that he, himself, is losing. If Darry is willing to take on the burden of raising his two brothers.... he should be given the opportunity.