All 19 or thereabouts,I am shielding, one of the friends has a parent who is shielding.
They have not seen each other for weeks and weeks...
They came around earlier for a BBQ (watched them through the patio doors) and they all socially distanced, they then went for a long walk to a local beauty spot, as they left I shouted after them, social distancing please.
DS turned and replied, I have come this far, I am not messing it up now. 
As an aside, how much food can three nineteen year old teens eat. ? 
I went out into the garden to bring plates, Dorritos etc, ( so I could close the doors and leave them to it)
As I left one of them turned to me and said thank you for this, I haven't seen my own peer group for months. 