Yy scottishskifun! Of course, a nurse passing covid to a patient isn't immoral. They are just a victim of inadequate PPE and poor management. But an adult child passing it to an aged parent is careless and selfish and reckless because they had no need to be that close to pass it on. I just can't get on board with that argument.
I really can't get worked up about a group of vaccinated friends meeting inside for a coffee either. Where is the risk there that makes it immoral, and how will that change once more people are vaccinated? OK, there's the miniscule risk one could pass it to another, who then passes it to an unvaccinated child who is unfortunate enough to get really ill. But there will always be unvaccinated people (children, allergies etc). Do we have a duty to avoid socialising with anyone ever again in order to avoid them getting really ill?
Of course any "unnecessary" death is tragic - whether from covid or something else, and whether someone young or old but otherwise healthy, but over the population we know covid overwhelmingly affects the elderly worst (with other factors obviously coming into play too). And now they have been vaccinated the societal risk, of overwhelmed health services or whatever has diminished.
FWIW I don't think people have been blatantly flouting rules. I think They have been making more use of the exemptions on caring visits, vulnerable support, carrying out work that can't be done from home and whatever. Obviously at some stage, things that weren't urgent and could be put off, suddenly become urgent and necessary. So it was never "essential" for me to do exercise at any particular time or in any particular way, but I chose to, because it was the only excuse I had to leave the house. So it may not be "essential" to support a (hypothetical) struggling friend on any particular day, or by (hypothetically) inviting her round for a cuppa but at some point it is essential to support her. And that point may well be when we haven't seen each other for 5 months and are getting fed up.