One of the problems with the idea of parenting licenses is that no program like that could ever be fool proof.
We have many areas of our societies in which people are carefully screened and selected, then trained for various positions of power... still... people get through all that and commit acts of violence towards someone under their control.
It's much more than just training someone to be a good parent.
Each person who is responsible for a child carries with them their past.
I believe the best we can do is to help the child grow up into a nurturing, loving, responsible adolescent, teen, adult.
Even this is not possible 100% of the time.
So from there, we go to correcting the person's reaction to whatever stimuli causes them to behave in a manner that is unacceptable to society's standards.
Some would advocate punishment either physical or mental, such as prison.
Others would like to see more rehab.
In the end, I suspect we will never be able to stop child abuse as a society.
Just as we cannot stop physical assaults between adults or murder....
All we can do is to try and lessen these types of trauma to the innocent and be there to help them after the fact.
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