Probably not. It's likely there are worse diseases out there that we just don't check and keep our normal lives being carriers. But once you know, it's probably better to avoid. I think questioning whether or not doing a pcr test is good use of resources. But I don't think skipping school for a few days is where the problem resides.
Is there any evidence this is different for Covid-19 than the vast sea of other viruses kids catch but we don’t PCR test for?