What's Off Limits in YA Fiction?

YA fiction author Chris Vick set himself some interesting rules to follow when he was including controversial issues in his books directed at teen audiences. I wonder if parents and teens would agree on the rules. And I wonder if the books we use in class demonstrate the rules. Interesting questions for our students...

https://www.theguardian.com/childrens-books-site/2016/may/10/teenagers-controversial-issues-fiction-chris-vick?CMP=share_btn_gp