The Dutch CDC (locally known as RIVM) concluded that risk to young children is very low, and Dutch schools have been open since early May based on this understanding.
AFAICT if you just try to synthesize the existing research without prejudice, you'd have to conclude that the risk of young children dying from COVID-19 is very low.
Whether there is much risk of children -> adult transmission is more difficult to answer.
The risk to young children is low. But not having symptoms or being low death rate doesn't mean shit.
Kids require adults to take care of them. That means those kids who may have the infection could VERY easily spread it to higher risk people.
They aren't immune, they still get the virus, they can still spread it. That is not immune. They just don't show symptoms like older people. That's not an immunity.
On top of that we don't know the long term effects of this thing. While kids may not show symptoms what long term effects might this have on kids? There's still a huge risk there.
In the Netherlands, 0.6% of the reported hospitalisations involved children under the age of 18, and 0 death have been reported under this age. Here's the summary page of the RIVM: https://www.rivm.nl/en/novel-coronavirus-covid-19/children-a...
Some googling reveals only corroborating reports that the case fatality (CFR) rate among young children is very low:
https://ec.europa.eu/knowledge4policy/sites/know4pol/files/j...
https://ourworldindata.org/mortality-risk-covid#case-fatalit...
https://www.publichealthontario.ca/-/media/documents/ncov/ep...
AFAICT if you just try to synthesize the existing research without prejudice, you'd have to conclude that the risk of young children dying from COVID-19 is very low.
Whether there is much risk of children -> adult transmission is more difficult to answer.