Those older than 40 need to go on living, those in the household at risk need to be isolated. Sorry.
Even if you could isolate people by age, you’re going to put 20% of the under 40 crowd in the hospital, which will overwhelm the system.
And if 20% end up in the hospital, then I bet at least another 20% are out of work 2 to 3 weeks with this illness. Maybe 60% can fight it off with no symptoms or miss less than 1 week of work.
I think the solution is that everyone wears masks. Preferably googles too. Everyone, whether healthy or sick.
Social distance until you get the spread rate low in the community, and then everyone wears masks until it’s completely eliminated from the community. Community/State isolation until the communities around you have low spread rates.
Case in point myself.
I saw this coming made sure I had 3 months of food and TP.
College kids came home. Daughter who teaches high school and was living with her mom and grandparents, decidied it would be safer for her grandparents if she isolated with me.
UA Huntsville went online and my son came home too.
They are isolating with me. I’m working from home. My son is schooling and working from home. My daughter’s high school students don’t all have access to the internet, so school is just out for the moment.
We are safe as long as we stay isolated together. But the second my daughter has to go back to teaching school, our risk factor goes up dramatically.