[frog in a pot]

Let the high risk family members self isolate.

You may want to consider this:
The level of risk is an insignificant element when determining a solution to the spread of this disease.
I.e., we can all act as carriers even if our level of risk of becoming ill is zero.

[central_va]

If a family has a high risk member the onus should be on them to find an isolation solution for them and not on society as a whole to figure it out.