Firstly, let me say that I've been in broadly in favour of restrictions put in place since March 2020, but surely, once we get to 19 July, and we have widespread vaccination coverage (not to mention non-vaccine immunity), we should just go back to normal, completely, and treat Covid like the flu, as effectively that's what we've tamed to be akin to.
No more masks, no more isolation, no more testing and tracing....
Yes, they'll be a spike in cases, and many will get ill, but as long as hospitals aren't overwhelmed and people aren't dying in droves, so be it.
I appreciate that there are those who remain vulnerable even after being double-jabbed, but I'd have thought it would be far better for them to shield themselves for a short period as it rips through and burns out like past epidemics, rather than keeping it simmering and retaining a moderate level of risk over a much longer period as we neither do enough to suppress it completely, nor allow things to open up fully enough for it to rip through in a few weeks.
Then as and when variants do arrive (which they probably will) we'll have an even more comprehensive base level of population immunity.