These numbers are very far off from the latest known. And it isn’t yet known how much higher the risk is when the demographic group is narrowed to those most at risk.
(See this post: AstraZeneca approval in the US - #393 by eschrodinger)
I’m not getting into that argument directly here though. The point is that it is important to look at the risks on both sides and not just assume that any vaccination is worth any risk.
Covid is also a risk. As I said, it will be a top 10 cause of death for children in 2020. Both risks require information to properly assess. And, again as I said, unless there turns out to be much more risk for kids than for adults, I anticipate getting my kids vaccinated when it becomes available for them.