Okay, I'll give that a try: the benefits of wearing masks in public during a pandemic are known, whereas any harm that might be caused by occasionally exposing children to the sight of partially covered human faces is unknown. Therefore, to minimize harm, we should favour masking.
This does not follow - your previous statements do not provide any evidence that masking is the choice that minimizes harm, unknown harm definitely does not mean no harm, it may be smaller or larger than the benefit. In order to make any statement whatsoever about whether the benefit outweighs the (unknown) harm, there needs to be at least some attempt to make a reasonable estimation on how large (or small) that harm is.
Ignoring it essentially means making a strong assumption that the harm is absolutely insignificant, but is that really the best informed guess specialists can make?
We are fairly certain that the real-world use of cloth masks and face coverings can only supply limited benefit, so the threshold for harm to make them not worth it may not be that high [0]. You can support wearing masks for adults in motor vehicle agencies (limited harm, limited benefit) and still realize that young children in daycare should not be required to be masked all day (potentially high developmental harm, limited benefit).
"In summary, though we support mask wearing by the general public, we continue to conclude that cloth masks and face coverings are likely to have limited impact on lowering COVID-19 transmission, because they have minimal ability to prevent the emission of small particles, offer limited personal protection with respect to small particle inhalation, and should not be recommended as a replacement for physical distancing or reducing time in enclosed spaces with many potentially infectious people."
My original comment suggested simply that the claim that wearing masks around children would harm them requires evidence. But the comment I was responding to here made the claim that the harm caused by masking in front of children is unknowable. I submit that if a harm is truly unknowable then we may as well treat it as no harm, since in this case common sense tells us that children are adaptable and resilient. But please, if you have a reasonable estimation, do share.
Okay, I'll give that a try: the benefits of wearing masks in public during a pandemic are known, whereas any harm that might be caused by occasionally exposing children to the sight of partially covered human faces is unknown. Therefore, to minimize harm, we should favour masking.