I dont know what 70 year old you know, but the ones I know aren't happy being stuck at home like the rest of us.
And besides, nursing homes. They need people to come and take care of them. If the workers aren't careful about it, the residents will die no question.
If the workers are careful, but the people in their house aren't, people will die.
If the people in the house are careful but their friends come and they aren't, people. will. die.