One of the issues that comes up with large families, is that older siblings learn to take care of the younger, even though "they're not my children." Dr. Phil has covered that issue a few times, especially with the Octomom, when he asked for "volunteers".
Update: May 26
CNN reports that the remaining episodes were pulled from cable airing. But TLC has not yet decided to cancel the series entirely. As of tonight, the basic page of video links is still available online at TLC's site. It's possible that existing episodes might remain available.