Recent extensive studies of over 60,000 contacts in South Korea have shown over 10s are as likely to catch and transmit CoViD-19 as adults, if not more likely.¹
And the mortality rate among children? Yes kids catch and transmit the disease but they are at a low risk to die from it. UN put out a warning that decades of progress could be lost and inequality increased if kids can't get back to school. That's a lot more real risk to kids.