I don't think you need to be an epidemiologist to have realized that kids were not at serious risk and that shutting down schools was harmful and unnecessary... But broadly (speaking for myself, here), it is simply never ok to lockdown/take away people's rights and freedoms on account of a virus (or anything). Viruses, flus, colds happen. This is part of being alive. We have rights for a reason and we need to protect those rights.