and very few North American GA pilots are every going to fly in Europe;
True, might add there are FAA-licensed pilot flying on N-registered aircraft in Europe on spanking brand new Cirruses without ADFs and though they are not operating 'globally' they are operating significantly outside of US borders. I personally know a few such pilots flying in Poland. Somehow they manage to survive with no ADF in the part of the world where it still could be helpful but I bet they don't read this forum to tell them what they should have or know ...
