//I don’t see it as a u turn, I see it as the government reacting to the most recent advice, which is exactly what they should be doing. //
I agree with the last part, but the advice didn't change between 4pm and 10pm yesterday, though, did it? Or, in the case of exams, any outside observer could have predicted the sequence of events as soon as the same thing had happened in Scotland. What happened in the rest of the UK is the political equivalent of watching a car drive off a cliff, and laughing at the occupants of that car for being so stupid whilst also driving off the exact same cliff.