The risk-benefit calculation is strongly age dependent. For old people there's no question about the benefit of the vaccines. For healthy children it's close.
It's very, very, very far from close. The most recent study from Christine Stabell out of Copenhagen showed that even if you're in the age group where the vaccine cuts covid mortality in half, you're overall 7% more likely to die by taking the vaccine. We need to get back to the drawing board on this one.
very common fallacy: absolute vs relative risk. kids have a miniscule risk of dying from covid (0.01%?) therefore reducing this already very very small risk isn't doing much at all. Of course kids do not require an experimental vaccine for a not at all very lethal viral infection.
The virus will be around forever so unless you live in a sterile bubble everyone will be occasionally exposed. So infection isn't 100% guaranteed, but it's close.