Abnuyc123, I think you are being alarmist and quite frankly ridiculous.
No situation is black and white as you draw it. What about the health dangers and life-limiting effects of being self excluded and alone for 4 months? We know that older people who are isolated become depressed, suffer from more mental problems, are more likely to develop other physical illnesses and become more dependent on other people. Far from making fewer demands on the NHS, they could end up making more.
On the other hand I am not suggesting we all party with hundreds of others in closed rooms with no ventilation. It is quite possible to reduce one's contacts with the outside world, while nurturing one's health. What and how these are depends from person to person, but looking at my diary, it is already full of cancelled events and my excursions out, my daily walk apart, are limited to only what is necessary and at times when it is judged I will come across as few people as possible.