Welcome to the margins. I’d hoped never to see you here – and I see many more arriving behind you. With vulnerable people still told to stay indoors for their protection, many are feeling worried about exactly which category they fall into. I’ve witnessed many people performing extravagant mental gymnastics to reassure themselves that guidelines don’t apply to ‘people like them’. Before lockdown began on March 23, many people saw themselves as capable adults like any others, not as ‘vulnerable’. But then the rules changed. That is something those of us on the margins know a lot about. I realise that back in March many people may not have known…