[jMyles]

I have found myself concerned about this as well (and thinking about what decision-making for parents must have been like in late summer when this characteristic started to become evident).

Ask yourself: if you're that parent, do you wish that your kid had already been exposed and run a complete course of the virus prior to this mutation?

It seems obvious that the answer is 'yes', and, at least to my way of thinking, is an indictment of the purely horizontal approach to pandemic control so far displayed by states.