There’s a pretty big problem with this assumption that “covid doesn’t affect kids”. How well are cases of long covid/post covid complications recorded and made available in a public space?
Speaking as a parent of a child with long term complications after covid, they’re not.
And the implications of that are exactly what we see here. Little understanding of the harm that covid infections can do. Little awareness of the signs of Mis-c/PIMS. Little awareness of how prevalent long covid can be in children.
Ds is under the care of a gp and a consultant. I asked the gp if information about his post-covid complications was passed on anywhere, she said no. Asked the consultant, and while data regarding the heart problems is “collected locally”, his other problems are not, as they’re not that specialist’s area. Zoe study? Often maligned as “self reported so they’re just making it up.” 
So who knows how ill my son was, and the complications he has? Anyone in government? Anyone in the JCVI? Doubtful. Long covid clinics maybe? Great, but what if there are none near you?
How in the fuck can any policy be made when there’s been next to no (official, national) effort to actually collect and collate information about post covid complications in children?
It’s an unsurprising fucking shambles. JCVI don’t give a shit, or they would have looked at even some rudimentary studies of long covid in children and extrapolated from there. You’ll notice, as others have pointed out, there’s no serious mention of post covid complications in children, almost as if it doesn’t exist.
Can’t find what you’re not looking for 🤷🏻♀️