The government speaks with forked tongues. On one had they want things to return to as normal as possible ie they want people to come into work and pay their taxes but they also want effective measures in place to prevent the spread of Covid 19. The thing is, the best way to stop the spread of Covid 19 is to avoid meeting other people unless you have to. Any face to face contact with others has to be justified (IMHO). So if you are doing something that absolutely requires two people working together then ok but just getting together to catch up is probably hard to justify.  When I looked after a 100 or so peripatetic workers (long before the current unpleasantness) we did not encourage them to meet up in their own homes. They could either use drop-in/touch down hubs if they were available or just meet up in a coffee shop etc.  Using private homes as a shared base felt like an imposition. I would never suggest such a solution. Of course it happened but never officially, so nobody ever had to apply for permission for this to happen.

currently going through and 'COVID aging' everyone...same scenario comes up almost every day...

If they are classed as Low vulnerability then there isn't really a problem to them, however thier possibility to cross infect others who may be classed as High vulnerable...and they won't know who they are...with the one to one sessions the social distancing and hygiene is finally sinking in with the guys...still a struggle at times...