Most Irishmen at least know a little Gaelic as they have to learn it at school.

Yeah, and most of them, a few years out of school, can hardly remember enough of it to understand a weather forecast. By that standard, most of northern Europe should be marked as bilingual with English.

)Anyway, I was just exemplifying. That map, as most similar maps, is pretty much atrocious. I suggest reaching your wallet to see if it's still there¹ whenever you hear people talking about minority languages.)

1. Well, sometimes I find more money in it than there would have been otherwise, such as when University College Dublin offered me a three-day Irish course in Donegal (including travel, accommodation, breakfasts, the welcome dinner, singing workshops and stuff) for €100, which would have been more or less the market price for travel and accommodation alone.