I don't get the logic of objecting to the opening. People seem to think that if the restrictions are kept then the vulnerable are somehow 'safe' - how on earth do they figure that? Even with the tightest restrictions people still got covid - the most common place to get it is in hospital, ie the place where many people are likely to be CEV. So you can have restrictions and run the risk of covid, or have no restrictions and run the risk of covid. Yes, for a while after the restrictions are lifted there will be more people with covid, but it's always been the case that if there's one person with covid in your vicinity you could get it from them - while more infected people means more chances, the only way to have zero risk is to never come into contact with a single other human being.
This opening up was by the far the most likely thing to happen. I've been saying since March last year that at some point they will just have to stop with the idea that you can hold a virus back and just accept an upsurge - there really is no other choice. Some other scenarios could have played out - it could have fizzled out, vaccination could have been amazingly effective - but those didn't happen, so here we are. Restricting, locking down, constantly running scared isn't a strategy. It has serious long term effects for a society. It simply has to stop at some point. It should have stopped months and months ago, but they're stopping it now, finally.
My guess is that someone finally said 'you know that Imperial Model that scared you all shitless with endless exponential growth, it's a load of horseshit' and they've finally listened. Anywhere that has had few/no restrictions and an upsurge of infections (most notable is India) has found that, much like every other virus in the history of the world, there is an upsurge and a steep drop off, because - surprise surprise - there isn't an infinite number of people to infect and people don't get infected on a Tuesday and get infected again the following Tuesday. People also tend to stay at home by default when they're ill. All things the Imperial model (which is built by physicists with no actual reference to human behaviour) failed to incorporate.
Locking down delays infections, it doesn't prevent them. So anyone going on about being 'thrown to the wolves' isn't really understanding what the last 16 months have been about. The scenario in which everyone was permanently 'safe' just wasn't a real possibility. The problem with lockdowns and restrictions is that while they delay infections they also cause heaps and heaps of other problems - they just exchange one problem for many many others.
The most enraging thing is that all this 'protecting the NHS' did bugger all - in spite of lockdown, which was there supposedly to allow the NHS to function, the NHS did not function properly (unlike in countries like Germany where the health system carried on entirely as normal). So on top of all the fallout of lockdown, we also have the fallout of a system that behaved as if it was overrun, by cancelling appointments, treatments and operations, even when it wasn't. What on earth was the point????
Remember India, with their lack of restrictions? Yes things were bad there for a while - their healthcare system is very patchy and was underprepared. Cases grew and grew and then just dropped - in one month they fell by 300,000. That's what viruses do. Here's the graph: