Yn ei adolygiad o wasanaethau eirioli proffesiynol annibynnol ar gyfer plant a phobl ifanc cymwys yn y gwasanaethau cymdeithasol, canfu Comisiynydd Plant Cymru bod mynediad at wasanaethau eirioli, ynghyd â gwybodaeth a dealltwriaeth ohono, yn anghyson ar draws Cymru. Roedd hefyd yn feirniadol iawn o drefniadau comisiynu ar gyfer eiriolaeth yn y sector.
The review of independent professional advocacy services for eligible children and young people within social care by the Children’s Commissioner for Wales found that access, knowledge and understanding of advocacy were patchy and inconsistent across Wales.  He was also critical of the commissioning arrangements for advocacy in this sector.