Your analogy falls flat on its face because the way God set it up is that children have HUMAN parents to protect them and make their choices for them when need be.
Your analogy falls flat on its face because adults are not children so they do not NEED God making their choices for them. They have free will so they can make their own choices, and they are adults so they are
responsible for their OWN choices.
Humans do not need God on their coattails telling them what to do. God sent Messengers who brought what humans need to know in order to make the right moral choices. That is how God intervenes in human affairs... There is no reason for God to do ANYTHING ELSE because people can read what the Messenger wrote.
God does not go on trial if a negligent parent allows a child to play in traffic and that child gets killed as a result. The parent might go on trial because
all rational people understand that adult humans are FULLY responsible for their actions, thus accountable for their actions.
Only a few atheists hold God accountable for human moral choices.
That is completely irrational since all humans have the free will to make their own moral choices. Most atheists are more rational than to ever say God is responsible for what humans do. Most atheists simply say that they do not believe in God because there is not enough evidence. There is nothing irrational about that since not all people view the evidence we have the same way.