It seems the United States is the only country that wants to inject 6 month olds and up with a bio terror weapon injection. Denmark has removed them for under age 50. European countries have stopped giving them to under age 30, and others to under age 25. Sweden is now stopping the vaccination of under age 18.
The reason given was that the risk of serious illness and death from COVID-19 in children and young people is very low.
They say that during the pandemic, few children and young people became seriously ill and subsequent variants are increasingly mild. Moreover, immunity in this age group is very high.