I have not seen this as an option in the media and wondered if this has been considered and rejected.
Unless the virus has shown to be mutating frequently, this option would allow low-risk groups to be exposed in an isolated environment, they would be able to get treatment if necessary. But if as expected, the majority get over the infection without adverse affects, they can be free from having to practice social distancing and/or isolation.
The first groups could be health workers and other essential personnel like the national guard. These people could then go about doing essential work without fear of catching it or spreading it.
Over time we could significantly reduce the number of people who would be forced to practice social distancing and/or isolation.
We could even consider having Covid-19 zones where people could get exposure, become immune and then be allowed to leave the zone.
This would reduce the stress on healthcare systems overall.