I don't have a grandmother, she died years ago. As for others' grandmothers, I don't give a fuck. If she's so concerned about her health, she can stay at home. Quarantine is for the unhealthy, not the healthy. I have accepted the risk that I catch the plague, and I have also accepted the risk I may end up dying from it, however miniscule. The chances of that happening, though? Almost zero. Everyone else needs to make their own risk assessments and then react accordingly - rather than engaging in mass hysteria.