The bottom line is simple. If you want never to leave your home you do not have to. Everything can be bought on line for delivery, you can communicate with family & friends by phone, whatsapp etc, get tour entertainment from TV, internet, books, crafts etc and if you can not do you job with no loss of productivity from home tell your employer you are taking unpaid leave then accept the consequences.
Go back a few steps and you can order shopping for click and collect so either not leave your car at all or keep outside at least 2m from everyone else. Similarly meet family and friends outside in quiet places while maintaining 2m distancing.
What is overlooked is the consequences of all except those in some way connected with essential services doing this. Short term how much more strain can the Magic Money Tree take. Longer term how will the damage be repaired ? Compared to 50+ years ago far few people are employed in manufacturing and production. All under the umbrella of hospitality and entertainment have taken up some of the slack. Taking a wider sweep Furlough ended at the same time as businesses took on additional staff for the build up to Christmas. Once people have spent their gift money these staff will no longer be needed. January - March always have been lean times as people pay off borrowing for Christmas and put spare money aside for the main holiday. Hence while unemployment did not jump in October time will tell if just a three month delay.
If just as an example, as I've no idea what the actual figures would need to be, the cost was stated as increasing general VAT from 20 to 25% and energy VAT from 5 to 10% for six months against every month of lockdown would all those who want more restrictions still want them ? After all it is easy to suggest things that neither cost you nor make a big difference to your life.
A second consideration which has been the subject of many posts over the last 18 months is mental health. Some need a regular escape from the same four walls. This may be as a family to e.g. bowling, play centre or individually to a pub, cinema etc.
A third consideration is simply driving social mixing underground to homes instead of pubs and clubs. The reality is police resources are limited so unless attention is drawn to the gathering the risks are minimal. Potentially the buildup and hence spread of Covid particles is greater as more cramped.