I don't think it's too far fetched to assume that FSD will work by the end of the year/early next for early beta testers in some areas of America (regulations pending). Over here, and in most of europe is a different matter, many main roads and those between houses were built to allow a horse to get down not a car, so they've been adapted to allow cars. So there's a lot of good roads, and a LOT of roads way too narrow, with no road markings and multiple obstacles and potholes. While Elon says the best way for FSD is to not have pre planned maps of how to drive and to just learn to drive properly, there's a lot of places in the UK where even a competent driver would be confused as to how to navigate, so it would need to form of assistance and have learned data specific to that road. Not really an issue to do but it'll just be further down the line....