I can 2nd this as an American who now resides in Europe. My first laptop I brought with me, and was defaulted to en_US, but my replacement is en_GB (Apple doesn

I can 2nd this as an American who now resides in Europe. My first laptop I brought with me, and was defaulted to en_US, but my replacement is en_GB (Apple doesn't have en_NL, for good reason). I don't find it "unusable", though. I could change it back to en_US, but it has actually been interesting to see all of my American spellings flagged by autocorrect. Each time I write authorize instead of authorise it is an act of stubborn group affinity!