Those toys in the garden look suspiciously like they’ve been to b&m to buy them whilst collecting their parcels. Remember the grandparents can’t go because they’re “old”, and as they have no-one else to ask for help then they have def been out and about instead of staying indoors. I thought also that those who were self isolating had to stay inside, and only those who are social distancing can go outside to garden, for a walk etc!