IMy parents have been able to isolate easily. They are together, they are both retired and have a reasonably sized detached house with garden. They order all there food online, and can have it delivered easily during the day. They can plan trips out, as my Mum still drives and they have a National Trust membership. They can plan their day around 'quiet' times.
Those who are working all day, live in small houses/flats with no outdoor space, either singularly or multiple occupancy, may have more need to go out and socialise at busier times.