but Irregular, why can't we all take a risk based approach. I'm capable of working out what level of risk I'm willing to accept and take, and I assume those with health conditions or are vulnerable are able to do the same.
We can't all take an individual risk based approach because that ignores the risk to our society as a whole if there is widespread illness out there. It ignores the risk to even healthy individuals that comes not from the disease directly, but from uncontrolled disease in the community.
If the virus is spreading in an uncontrolled way then the nhs will be at risk again. We haven't protected it for good, it only stays protected so long as infection rates remain low. Non-covid treatments are hugely at risk if covid infections are high in a community - and that would be true even if every vulnerable person stayed at home.
We desperately need to be able to end the lockdown but if we don't keep the number of infections very low then we will still be harming the nhs, the economy, people's mental health.
If the people whose individual risk of dying is low aren't still careful not to catch and spread the virus, then infection rates won't stay low.
Ending lockdown will only work if we all take seriously the need for everyone to avoid catching the virus. Telling some people that it doesn't matter if they catch it because on paper they aren't vulnerable does the opposite of that.
It's good for people to feel reassured that their individual risk of death is low, so long as they also understand that that doesn't protect them from any of the other consequences of high infection rates in their community.