If it helps to detect asymptomatic cases, even if at around a success rate of 50% is something? Aren't the ones that we need to be finding to help reduce the spread? Plus we already know getting a test is hard for children because they don't present with the typical symptoms.
If this semi accurate test shows a positive, the proper test can then be done?
Plus the parents can refuse testing and still go down the SI route?
Schools should be told the results, although if they are testing, parents cannot deny the results.
But then of course, it loops back to who is doing the tests.
The when - during morning registration?