The problem many have is they haven't thought out how bad lockdown is. And some say it should have happened before people got the virus.
No visiting family. Especially not the vulnerable ones. Not even able to take your dog for a walk. Not even being able to go for a walk where nobody else will be.
Life stops. I have been doing it for a week now. My job where I work is very important. I am ready to work 7 days a week when others can't get in. There is 1 person a shift doing my job. I live alone in England so know what it is like to have nobody around. I enjoy my own company. But how many weeks/months could I cope with it? Then think how many single people there is in the UK.
Astute, you are right that lockdown will be tough but I don't think people are underestimating it or wanting it, it's just that it might be a price we have to pay to slow this thing down long enough to catch out breath.