Ask someone in Merthyr who went to a Welsh-medium school but lost confidence in their Cymraeg how determined they are to get Welsh-medium education for their children.
Gofynnwch i rywun ym Merthyr aeth i ysgol Gymraeg ond sy wedi colli hyder pa mor benderfynol maen nhw i gael addysg Gymraeg i’w plant.