RichM Because the things you have mentioned don’t overwhelm the NHS out of the blue, something which would result in a snowball effect and more deaths.
If the grand reopening goes ahead without any restrictions and we get a surge in cases, a surge that we don’t even attempt to restrain for the sake of herd immunity, we are more likely to get a new variant. Who knows what the new one looks like… one that overpowers the vaccines, so we are back to square one? One that kills middle aged white blokes? One that kills kids? Spin the wheel of fortune and lets find out!