COVID poses almost no risk to our kids at all. Millions of children have tested positive for children however statistically nearly none have died or gotten seriously ill. There are no current studies that show long term effects for covid as well. Children are not in danger from covid. 

Consider that an adult that has been vaccinated is not worried about covid. They have nothing to fear of covid because of their vaccination. An adult with covid is still at more risk of death from covid than an unvaccinated child. This is statistical proof and undisputed. That means an unvaccinated child can worry less about covid than a vaccinated adult. 

So then why vaccinate a child? The risk to them is already exorbitantly low - lower in fact than you, the vaccinated adult who is reading this. 

The risk of the vaccine itself to children however is unknown. It has not been tested on children long term. Why then would you take an unknown risk to eliminate virtually no risk? It doesn't make sense. 

To the question of children spreading to adults - the adult themselves can vaccinate. 

To the question of "we already mandate other vaccines, like MMR". Consider these vaccines were tested for decades before being mandated, covid vaccine has not. Furthermore, the diseases of those vaccines can actually harm children. Covid cannot harm children - so again, there is no reason to vaccinated them. 

Obviously mandatory vaccines for children has no science or reason behind it, just emotions. We should not and can not make mandates based on emotions. Anyone who believes different can argue with my logic above, I invite you to find fault. If you do please point it out to me.