My DH and I haven’t had it but I would like to add, that it’s quite possible to have had it without knowing, unless you are regularly doing lateral flow tests. Because of this, I would say that most people who ‘haven’t had it’ may well have had it but not felt ill in any way. Also, when I was I’ll, with cough, high temperature and really bad headache, I tested myself several times but only got a negative result. I have heard of people who carried on testing after being ill and only getting a positive result days later after they have recovered. I was also told that if you have had SARS previously you will have some immunity to Covid. I would probably guess that most people have had it but maybe not realised it.