I've never understood the UK's aversions to GPS or OCTA approaches. I've worked in Oz, the UK and now the US. The US has airspace that gets just as crowded as the UK but manages both items. I've been unable to find a different accident rate even though the US has much worse terrain & weather (except maybe Shetland...
) than the UK and Oz has can have rather limiting alternate options due distance
There are plenty of places in the UK where such things would be a boon eg Shetland, Orkney, anywhere from John O'Groats (sp?) to Edinburgh.