I had the same emotional reaction as a parent of an u12 too.
But when you look at the data it’s just not a rational (although it’s a perfectly understandable) fear. Pretty much doing anything in life will be riskier than this and I don’t think many parents want their kids to live in a complete bubble.
Studies find that overall risk of death or severe disease from COVID-19 is very low in kids.
www.nature.com
It may also be the best thing for our children to get Covid young and have lifetime resistance to it.
This ignores long Covid though - so we don’t know that.
For me I’m going to be much more worried teaching my kids to drive and then getting a license than Covid risk.
For those that have kids with severe underlying breathing difficulties etc than the calculus may be different.
For those kids that have anti vax obese parents then it will be the parents that are the ones likely to make their kids an orphan after their kids get it at school.