Help me with Pro Parent Licensing speech. How could it be fair and enforced and Justify costs?

I have to give a speech in a few days ( I was given only one week to write). My claim is that a parenting license should be required for all. I’m about half way done but having trouble with a few parts:

1. How would a licensing plan be enforced? (what requirements/tests etc would be fair and actually effective?)

2. What would happen if someone had a child without a license? Or if they refused to get one?

3. How can I explain how it would be paid for and justify the costs of having a licensing program?

I’ve read lots of articles but none explain a licensing plan that could work..they just prove one would help! Please help!