Steve and family in Oz....keep well.
FFL. Those restrictions sound very difficult. How long have you got to do that ?
It makes the standard restrictions look relatively easy as getting out of the house for long walks is a real bonus.
It seems to me that shielded people should not relax those measures until they have had the vaccine. Certainly we are making plans based on that assumption.
While the idea od Herd Immunity is fine for those who may have had some exposure, the most vulnerable will mostly have had no exposure and would still be at most risk if contracting the virus.
Keep well and safe FFL. These measures are a relatively short period in a lifetime and think of the parties we will have when this is over.