Only 18% of those in the youngest age group responding to the consultation (16 to 24s) were in favour of the idea, compared with 60% of the oldest age group (65+).
Dim ond 18% o’r rhai yn y grŵp oedran ieuengaf a ymatebodd i’r ymgynghoriad (16-24) oedd o blaid y syniad, o gymharu â 60% o’r grŵp oedran hynaf (65+).