is Gaelic really that prevalent in Ireland? The majority seems to be green-majority striped. Rather more than I expected, though I suppose that those areas are mostly the countryside and spots far from English and Scottish colonies anyways. Almost ominous how pink the Highlands are, though Lowland Scots and Highlander Chiefs are more to blame for the depopulation of the area than the English.
I assume it's from the RoI census proficiency figures, which are, AFAIK, self-selected. And since Irish is taught in school in the RoI, a lot of people would be inclined to think they're proficient.