Chris

We’ve been through this before.

The vaccine is very safe in children.
The virus is very safe in children.
But
Both the virus and the vaccine can cause serious illness in a very few cases
And
After two doses of the vaccine, in teenagers, the risk of complications rises more than the risk of infection falls.

So the major reason for vaccination of children is not to protect children but to protect the population from potential mutations in persistent wells of infection;
But
There are ethical questions around giving someone medicine that is not for their benefit, especially when there is a small, but present, risk that the medicine can harm them.

So is the benefit to the wider population compelling enough to impose an albeit small risk of complications on a child?

Resolving this question is a matter of medical ethics. It’s the reason why, on present evidence, we don’t vaccinate young children and we only vaccinate teenage children once.