This strikes me as highly naive. We have states here in the US banning cities from implementing mandatory mask rules. Do you really think places like that are going to tell people older than 65 not to come in? Do you think if someone who's high risk refuses that they'll still have a job in a place like that? If you're over 65 and will potentially lose your pension for not going in to work, you're probably going to have to think twice about that before just saying no.