Both of these cases were high school situations, a typically traumatizing environment, with immature teenaged people.

I'm sorry, I do not see the same likelihood of collusion in this case of intelligent women who had no relation to each other. I am not saying it is impossible, but I have a hard time seeing it.

And UVA rape scandal? Or was that just a college situation, with immature post-adolescent people?

I think collusion among people who did not know each other at all is unlikely.