I have been vaccinated and am concerned, but still want to fly. I would be travelling on a holiday route to a destination with very restrictive entry rules. I can use the GF check in and lounge and am willing to take my chances on that and a very lightly loaded flight. I regard the main risk as being the UK Border on my return. Is it unreasonable to ask that the government follows its own advice and takes reasonable steps to make the border experience reasonably safe ?