We’re not talking about fault.
We’re talking about capability, with or without assistance.
In some cases, help may be refused or simply not suffice to meet the needs of the child in that home environment.
This is not about fairness, fault or equal rights and opportunities.
This is about “can do” with or without help.
The OP did not provide enough information for anyone to properly respond (nor, do I think, we should).
This is a question for a professional from a social services-mental health facility to address.
It sounds like the OP is convinced this is a case of neglect whereas we, fellow CR visitors, do not necessarily agree.