I think the majority of people are still following the "spirit" of the rules. We locked down completely pretty early, before the official date, but then we could. But I am also pretty relaxed about others who couldn't using their common sense and conforming as much as was possible.
We had DD back from London, a couple of days before lockdown, some would say that was not acceptable. But as we have stayed in since, there was no issue.
I think people meeting up with a small bubble, in advance of government advice, is fine. Most people are sensible, and many have in fact done more than was asked of them, some have done less.
I am very much an advocate of trusting people to make good decisions. We don't live in a dictatorship, thank god, and you will always have the idiots, some of whom were fined. In general however, I think people have been pretty good.
The bigger problem we are facing I think, will be persuading people to get back to normal, or as normal as can be.