That's not the job of the school system.
It could be the job of the school system. The problem is that the conservatives oppose teaching anything that contradicts their beliefs regardless, even things that are known to lead to desired outcomes, even things that are based on fact and reasoned analysis of fact.
To count as an atheist, one needn't claim to have proof that there are no gods. One only needs to believe that the evidence on the god question is in a similar state to the evidence on the werewolf question. -- John McCarthy