If a parent can't function when the basics are provided, then teachers, neighbours, and family members will be less inclined to use the excuse "but times are tough, and that person is trying hard to be a good parent".
IDK - I am inclined to think, having come from a broken home and having done community service for shoplifting food for me and my brother, if $parent (father in my case) can't get their shit together, the children would have been better off without them.