Fodd bynnag, ar adegau bydd galluedd, amgylchedd neu amgylchiadau unigolion yn golygu nad ydynt yn teimlo bod ganddynt y grym i leisio'u barn i sicrhau eu bod yn ddiogel, neu bod ganddynt lais ynghylch y pethau sy'n bwysig iddyn nhw yn eu bywyd bob dydd, neu ynglŷn â ble i gael gafael ar ofal neu gymorth. Pan fydd hyn yn digwydd, mae'n hanfodol eu bod yn gallu troi at eiriolwr annibynnol a all eu cynrychioli a lleisio'u barn a'u dymuniadau yn rhydd ac yn uniongyrchol.
However there are times when because of a person’s capacity, the environment or circumstances they find themselves in, the individual does not feel empowered to use their voice to ensure that they are safe, or that they have a voice in what matters to them about their daily life or where they can get care or support. When this happens having access to an independent advocate who can represent them and be their voice to communicate their views and wishes freely and directly is critical.